Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Texas Instruments LM2853MH-2.5

Name: LM2853MH-2.5
Brand: Texas Instruments
SKU: LM2853MH-2.5
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: LM2853MH-2.5

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 14-PowerTSSOP (0.173", 4.40mm Width)

Datasheet:: LM2853MH-2.5.pdf

Description:: IC REG BUCK 2.5V 3A 14HTSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,994

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

LM2853MH-2.5 from Texas Instruments is a 3A, 550 kHz synchronous buck regulator in an exposed-pad HTSSOP-14 package, delivering a factory-programmed 2.5 V output with ±2.25% tolerance (2.4437 V to 2.5563 V) across −40°C to +125°C. It operates from 3.0 V to 5.5 V input, integrates 40 mΩ/32 mΩ internal MOSFETs, and supports low-voltage point-of-load regulation for FPGA/DSP core supplies.

For engineers reviewing the LM2853MH-2.5 datasheet, LM2853MH-2.5 pinout, LM2853MH-2.5 application, or LM2853MH-2.5 equivalent, key selection criteria include its fixed 2.5 V output, internal type-three compensation, 12 µA shutdown current, TSSOP-14 thermal performance, and compatibility with standard 4.7–6.8 µH inductors and 100–220 µF output capacitors.

Technical Context

The LM2853MH-2.5 implements voltage-mode control with integrated PWM controller, synchronous power switches, and on-die type-three compensation-eliminating external compensation components. Its dual-rail architecture separates AVIN (3.0–5.5 V control supply) from PVIN (1.5–5.5 V power supply), enabling flexible biasing and improved transient response.

Protection features include thermal shutdown at 165°C (10°C hysteresis), cycle-by-cycle current limiting (3.6–5 A threshold), and UVLO on AVIN (2.47–3.0 V turn-on with 50–260 mV hysteresis). The SNS pin enables precise resistive feedback-free regulation, while the SS pin supports externally adjustable soft-start via 1–50 nF capacitor.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.5 V ±2.25% (2.4437 V–2.5563 V) over full temperature and line range-no external resistor divider required.
Max Output Current	3 A continuous-supports high-current digital loads like FPGA I/O banks or DSP peripherals without external current boosting.
Switching Frequency	550 kHz nominal (325–725 kHz range)-enables compact magnetics and balances efficiency vs. EMI for mid-power applications.
Input Voltage Range	AVIN: 3.0–5.5 V; PVIN: 1.5–5.5 V-allows split-rail operation for optimized efficiency when powering from separate rails.
Quiescent Current	12 µA in shutdown-minimizes standby power loss in battery-backed or always-on systems.
Thermal Resistance	θ_JA = 38 °C/W (MXA14A package)-requires minimal PCB copper area for thermal relief under full load at 125°C ambient.
Internal FET R_DS(on)	P-FET: 40 mΩ typ / 120 mΩ max; N-FET: 32 mΩ typ / 100 mΩ max-determines conduction loss and efficiency at 3 A load.

Pinout & Package

Package: HTSSOP-14 with exposed thermal pad (TI package drawing PWP, JEDEC MO-153 variant MXA14A). The exposed pad must be soldered to a dedicated GND plane for thermal and electrical integrity; it is internally connected to GND but not rated as primary ground path.

Pin/Terminal	Circuit Role	Design Meaning
1 (AVIN)	Control circuit supply input	Provides regulated bias for internal logic; must be ≥3.0 V and ≤5.5 V; decoupling with 1 µF ceramic recommended.
2 (EN)	Enable control input	Active-high enable; internally pulled up-device powers on by default unless driven low; VIH = 75% AVIN, VIL = 25% AVIN.
3 (SGND)	Analog ground reference	Low-noise ground for error amplifier and feedback circuitry; must be star-connected to avoid noise coupling into SNS.
4 (SS)	Soft-start timing node	Connects to external capacitor (1–50 nF) to control output ramp rate; internal 450 kΩ resistor sets RC time constant.
5 (NC)	No-connect terminal	Must be tied to SGND; not internally connected-ensures mechanical stability and avoids floating node EMI.
6,7 (PVIN)	Power switch supply input	High-current input for internal FETs; requires low-ESR bulk capacitor (e.g., 47 µF ceramic) placed adjacent to pins.
8,9 (SW)	Switch node	Drives external inductor; high dV/dt node-must use short, wide trace to minimize ringing and EMI radiation.
10,11 (PGND)	Power ground return	High-current return path for FETs and inductor; must connect directly to PGND plane under exposed pad.
12,13 (NC)	No-connect terminals	Both must be tied to PGND; improves thermal conduction and reduces parasitic inductance in power loop.
14 (SNS)	Output voltage sense input	Direct connection to regulated output; senses voltage at load to maintain accuracy-requires Kelvin routing near load.

Key Features

Feature	Design Value
Integrated Type-Three Compensation	Eliminates external compensation network-reduces BOM count and layout sensitivity while ensuring stable operation with recommended LO/CO ranges.
Synchronous Power Stage	40 mΩ P-FET + 32 mΩ N-FET pair-enables >90% peak efficiency at 3 A, 5 V→2.5 V, reducing heat dissipation vs. diode-based buck.
Split-Rail Input Architecture	Independent AVIN and PVIN supplies-permits optimization of control logic voltage (e.g., 3.3 V) while powering FETs from higher-efficiency rail (e.g., 5 V).
Factory-Programmed Output	2.5 V set via on-chip EEPROM-guarantees output accuracy without external resistors, simplifying design and improving long-term stability.
Robust Protection Suite	Includes thermal shutdown (165°C), cycle-by-cycle current limit (≥3.6 A), and AVIN UVLO-prevents damage during fault conditions without external circuitry.

Applications

Industrial PLC I/O Module	FPGA Core Supply
Use Scenario: Regulating 2.5 V for analog front-end ADCs and DACs in programmable logic controller modules operating in harsh industrial environments. IC Role / Device Role / Timing Role: Primary point-of-load DC-DC converter delivering clean, stable 2.5 V to precision data converters. Use Value: Tight 2.4437–2.5563 V output tolerance ensures ADC reference accuracy; 38 °C/W θ_JA enables reliable operation at 70°C ambient without heatsink.	Use Scenario: Powering 2.5 V I/O banks of Xilinx Spartan or Intel Cyclone FPGAs in communication gateway designs. IC Role / Device Role / Timing Role: Dedicated buck regulator supplying configurable I/O voltage with fast transient response to dynamic load changes. Use Value: 550 kHz switching frequency allows use of small 4.7 µH inductors; internal compensation ensures stability with standard 150 µF tantalum output capacitors.
Network Router Line Card	Automotive Infotainment MCU
Use Scenario: Generating 2.5 V for Ethernet PHY transceivers and packet buffer SRAM on multi-port router line cards. IC Role / Device Role / Timing Role: High-current, low-noise power stage supporting burst-mode traffic with minimal voltage droop. Use Value: 3 A capability handles peak PHY current surges; soft-start (via 2.2 nF CSS) prevents inrush-induced system reset during hot-plug insertion.	Use Scenario: Supplying 2.5 V to ARM Cortex-A53 application processors in automotive head unit designs requiring AEC-Q100 alignment. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 5 V vehicle bus, meeting strict automotive transient and thermal requirements. Use Value: −40°C to +125°C operating range and 165°C thermal shutdown ensure reliability across engine bay and cabin environments; RoHS/Green compliance meets Tier-1 sourcing mandates.

Industrial PLC I/O Module

FPGA Core Supply

Use Scenario: Regulating 2.5 V for analog front-end ADCs and DACs in programmable logic controller modules operating in harsh industrial environments.

IC Role / Device Role / Timing Role: Primary point-of-load DC-DC converter delivering clean, stable 2.5 V to precision data converters.

Use Value: Tight 2.4437–2.5563 V output tolerance ensures ADC reference accuracy; 38 °C/W θ_JA enables reliable operation at 70°C ambient without heatsink.

Use Scenario: Powering 2.5 V I/O banks of Xilinx Spartan or Intel Cyclone FPGAs in communication gateway designs.

IC Role / Device Role / Timing Role: Dedicated buck regulator supplying configurable I/O voltage with fast transient response to dynamic load changes.

Use Value: 550 kHz switching frequency allows use of small 4.7 µH inductors; internal compensation ensures stability with standard 150 µF tantalum output capacitors.

Network Router Line Card

Automotive Infotainment MCU

Use Scenario: Generating 2.5 V for Ethernet PHY transceivers and packet buffer SRAM on multi-port router line cards.

IC Role / Device Role / Timing Role: High-current, low-noise power stage supporting burst-mode traffic with minimal voltage droop.

Use Value: 3 A capability handles peak PHY current surges; soft-start (via 2.2 nF CSS) prevents inrush-induced system reset during hot-plug insertion.

Use Scenario: Supplying 2.5 V to ARM Cortex-A53 application processors in automotive head unit designs requiring AEC-Q100 alignment.

IC Role / Device Role / Timing Role: Secondary regulated rail derived from 5 V vehicle bus, meeting strict automotive transient and thermal requirements.

Use Value: −40°C to +125°C operating range and 165°C thermal shutdown ensure reliability across engine bay and cabin environments; RoHS/Green compliance meets Tier-1 sourcing mandates.

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS54320RTQR	3 A, 4.5–17 V input, adjustable output (0.76 V–7 V), 600 kHz, integrated compensation, 15 µA IQ	Wider input range and adjustable output-suited for systems requiring flexibility across multiple voltage rails	Select when input exceeds 5.5 V or output voltage must be reconfigured; requires external feedback resistors and may need additional compensation tuning.
MP2315GJ-Z	3 A, 4.5–28 V input, fixed 2.5 V output, 500 kHz, no integrated compensation, 25 µA IQ	Higher input voltage rating and lower cost-but lacks internal compensation and requires external RC network	Select for cost-sensitive industrial applications with >5.5 V input; expect added design effort for loop stability verification and larger solution footprint.

Compared with TPS54320RTQR and MP2315GJ-Z, the LM2853MH-2.5 offers guaranteed 2.5 V accuracy without external resistors, superior thermal performance in HTSSOP-14, and simpler layout due to integrated compensation-making it optimal for space-constrained, fixed-output 3.3/5 V system rails.

Availability

LM2853MH-2.5 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, FPGA power delivery, network infrastructure line cards, and automotive infotainment systems requiring stable component supply and long-term manufacturability.

Supply support for LM2853MH-2.5 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-reliability power conversion solutions.

The LM2853MH-2.5 belongs to TI's SIMPLE SWITCHER® synchronous buck regulator family, designed specifically for low-component-count, high-efficiency point-of-load regulation in space- and thermally-constrained digital systems.

FAQ

What is the output voltage tolerance of the LM2853MH-2.5 over temperature and line variations?

The LM2853MH-2.5 delivers a factory-programmed 2.5 V output with guaranteed tolerance of ±2.25% (2.4437 V to 2.5563 V) across the full operating junction temperature range (−40°C to +125°C) and input voltage range (3.0 V to 5.5 V AVIN). This specification is measured at the SNS pin in closed-loop, non-switching configuration per the official datasheet.

Can the LM2853MH-2.5 operate with separate AVIN and PVIN supplies?

Yes, the LM2853MH-2.5 supports split-rail operation: AVIN (3.0–5.5 V) powers the control circuitry, while PVIN (1.5–5.5 V) powers the synchronous FETs. PVIN must be ≤ AVIN. This architecture enables optimized efficiency-for example, using 3.3 V for AVIN and 5 V for PVIN in mixed-voltage systems-without compromising regulation or protection functionality.

What is the recommended soft-start capacitor value for the LM2853MH-2.5?

The LM2853MH-2.5 uses an internal 450 kΩ resistor to charge the soft-start capacitor (CSS) connected to pin 4. For a typical 3 ms startup time, a 2.2 nF ceramic capacitor is recommended-this yields ~1 ms RC time constant, and three constants (~3 ms) bring the output to 95% of final voltage. CSS must be between 1 nF and 50 nF to ensure proper fault recovery behavior.

Does the LM2853MH-2.5 require external compensation components?

No, the LM2853MH-2.5 integrates a complete type-three compensation network on-die. This eliminates external op-amp, capacitor, and resistor networks-reducing BOM count, board area, and design risk. Stability is ensured when using inductors (4.7–6.8 µH) and output capacitors (100–220 µF) within the ranges specified in Table 1 of the datasheet.

What thermal performance can be expected from the LM2853MH-2.5 in a standard PCB layout?

In a standard 4-layer PCB with 1 oz copper, 200 mm² exposed pad GND pour, and recommended layout practices (short PVIN/CIN traces, Kelvin SNS routing), the LM2853MH-2.5 achieves θ_JA = 38 °C/W. At 3 A load and 5 V input, this translates to ~45°C junction rise above ambient-well below the 125°C max rating, enabling reliable operation without forced air or heatsinks.

LM2853MH-2.5 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: SIMPLE SWITCHER®

Package/Case:: 14-PowerTSSOP (0.173", 4.40mm Width)

Packaging:: Tube

Product Status:: Obsolete

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Fixed

Number of Outputs:: 1

Voltage - Input (Min):: 3V

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 2.5V

Voltage - Output (Max):: -

Current - Output:: 3A

Frequency - Switching:: 550kHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-HTSSOP

LM2853MH-2.5 FAQ

1.How can I place an order for LM2853MH-2.5 through Aetrix?

Please submit a Request for Quotation (RFQ) for LM2853MH-2.5 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for LM2853MH-2.5 reliable?

The price and inventory of LM2853MH-2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2853MH-2.5 is usually 5 days.

3.What payment methods are accepted for LM2853MH-2.5?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2853MH-2.5 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM2853MH-2.5?

LM2853MH-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM2853MH-2.5 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for LM2853MH-2.5?

For technical support, including LM2853MH-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2853MH-2.5 requirements.

6.How does Aetrix verify that LM2853MH-2.5 is sourced from the original manufacturer or authorized distributors?

All LM2853MH-2.5 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM2853MH-2.5 meets industry standards.

7.What is the process for return or replacement of LM2853MH-2.5?

All LM2853MH-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with LM2853MH-2.5, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The LM2853MH-2.5 part is unused and in its original packaging.

Return procedure for LM2853MH-2.5:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…