My Inquiry
My Account
Analog Devices Inc. LTC3624HMSE-25#TRPBF
- Part No.:
- LTC3624HMSE-25#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC3624HMSE-25#TRPBF.pdf
- Description:
- IC REG BUCK 5V 2A 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,228
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3624HMSE-25#TRPBF from Analog Devices (formerly Linear Technology) is a 2.25MHz, 2A synchronous step-down regulator in a 12-lead MSOP package with exposed thermal pad, delivering fixed 5V output from 2.7V–17V input while maintaining 3.5µA quiescent current in Burst Mode and ±1% output voltage accuracy. It supports forced continuous, pulse-skipping, and Burst Mode® operation for optimized efficiency or low ripple in battery-powered instrumentation.
For engineers reviewing the LTC3624HMSE-25#TRPBF datasheet, LTC3624HMSE-25#TRPBF pinout, LTC3624HMSE-25#TRPBF application, or LTC3624HMSE-25#TRPBF equivalent, key selection criteria include its 2.25MHz switching frequency, H-grade –40°C to 150°C junction temperature rating, 5V fixed output with internal feedback, and MODE/SYNC pin configurability for light-load efficiency vs. ripple trade-offs.
Technical Context
The LTC3624HMSE-25#TRPBF employs constant-frequency peak current mode control with internal compensation and 1ms soft-start. Its 2.25MHz oscillator enables compact external components and supports ±40% synchronization range via the MODE/SYNC pin.
It integrates PMOS high-side and NMOS low-side power switches with RDS(ON) of 200mΩ (top) and 115mΩ (bottom) at VIN = 5V, and features overtemperature protection, VIN overvoltage lockout (19V), and undervoltage lockout (2.7V). The PGOOD pin provides ±7.5% output regulation monitoring with 32-cycle blanking delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±1% - eliminates external feedback resistors and simplifies layout for stable 5V rail generation. |
| Switching Frequency | 2.25MHz (±20% typical) - enables use of small inductors (e.g., 2.2µH) and ceramic capacitors for space-constrained designs. |
| Max Output Current | 2A continuous - supports moderate-power digital loads such as microcontrollers, sensors, and RF modules. |
| Quiescent Current | 3.5µA in Burst Mode - extends battery life in always-on portable equipment like emergency radios and handheld meters. |
| Input Voltage Range | 2.7V to 17V - accommodates single-cell Li-ion (fully charged), multi-cell alkaline, and industrial 12V rails without pre-regulation. |
| Junction Temp Range | –40°C to +150°C (H-grade) - qualified for under-hood automotive, industrial controls, and high-ambient embedded systems. |
| Efficiency Peak | 95% at 1A load (VIN = 12V, VOUT = 5V) - reduces thermal stress and enables fanless operation in sealed enclosures. |
Pinout & Package
Package: 12-lead plastic MSOP with exposed thermal pad (Pin 13), rated for θJA = 40°C/W and θJC = 10°C/W. Exposed pad must be soldered to PCB ground for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pins 1,2) | Switch node connection | Drives external inductor; requires low-inductance layout and Kelvin connection to minimize ringing and EMI. |
| VIN (Pins 3,4) | Main input supply | Accepts 2.7V–17V; bypass with ≥10µF ceramic capacitor placed adjacent to pins to suppress high-frequency noise. |
| RUN (Pin 5) | Enable control input | Logic-high (>1.0V) enables regulation; tie to VIN or microcontroller GPIO; must not float. |
| PGOOD (Pin 6) | Power-good status indicator | Open-drain output pulled low if VOUT deviates >±7.5%; includes 32-cycle blanking to reject transient glitches. |
| FB (Pin 8) | Feedback reference input | Internally connected to 5V output (fixed version); no external divider required - simplifies BOM and layout. |
| INTVCC (Pin 9) | Internal LDO output | 3.6V regulated supply for gate drivers; bypass with ≥2.2µF ceramic capacitor to GND for stability. |
| MODE/SYNC (Pin 10) | Operating mode select / clock sync | Tie to INTVCC for Burst Mode (3.5µA IQ); to GND for pulse-skipping (low ripple); or to external clock for synchronization. |
| GND (Pins 11,12,13) | Signal and power ground | Exposes thermal pad (Pin 13) - must be soldered to large PCB copper area for thermal dissipation and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Burst Mode® operation | Reduces quiescent current to 3.5µA at light loads while maintaining regulation - critical for multi-year battery life in IoT edge nodes. |
| 2.25MHz fixed switching frequency | Enables <3mm × 3mm inductor footprint and eliminates audible noise - ideal for compact portable medical and test equipment. |
| H-grade temperature rating (–40°C to 150°C) | Guarantees full specification compliance in high-ambient environments such as automotive engine compartments or industrial motor drives. |
| Integrated power MOSFETs | Eliminates external high-side PMOS and low-side NMOS - reduces component count, layout complexity, and board area by ~30% vs. controller-based solutions. |
| Internal soft-start (1ms) | Prevents inrush current during power-up - protects input source and avoids brownout in shared supply rails. |
Applications
| Battery-Powered Instrumentation | Emergency Communication Radios |
|---|---|
Use Scenario: Handheld multimeters and portable oscilloscopes operating from 2×AA/AAA or single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Primary 5V system rail regulator, enabling MCU, display, and analog front-end operation across wide input voltage swing (0.9V–17V). Use Value: 3.5µA quiescent current extends shelf life and runtime; 2.25MHz switching allows ultra-compact 2.2µH inductor and 10µF input cap. |
Use Scenario: Compact HF/VHF emergency transceivers requiring reliable 5V supply during extended standby and burst transmission. IC Role / Device Role / Timing Role: Main DC-DC converter powering RF PA bias, microcontroller, and audio codec - must survive cold cranking and load dump conditions. Use Value: 17V absolute max input and VIN OVP (19V) protect against automotive transients; H-grade temp rating ensures operation at 85°C ambient. |
| Industrial Sensor Nodes | Low-Power Embedded Controllers |
Use Scenario: Wireless vibration or temperature sensors deployed in factory automation with 10+ year battery life targets. IC Role / Device Role / Timing Role: Always-on 5V supply for ultra-low-power MCU and BLE/Wi-Fi SoC during deep sleep and periodic wake-up bursts. Use Value: Burst Mode IQ of 3.5µA minimizes self-discharge; PGOOD enables precise power sequencing and fault detection before sensor sampling. |
Use Scenario: Programmable logic controllers (PLCs) and motor drive I/O modules requiring robust 5V rail from unregulated 12V/24V field bus. IC Role / Device Role / Timing Role: Secondary point-of-load regulator delivering clean 5V to FPGA configuration memory, ADC references, and interface ICs. Use Value: ±1% output accuracy ensures ADC reference stability; 2A capability supports multiple peripherals without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54227PWPR | 2.2MHz, 2A, 3.5µA IQ, but only rated to 125°C (I-grade); no Burst Mode - uses DCM for light-load efficiency. | Lower temperature rating limits use in under-hood or high-ambient industrial settings where LTC3624HMSE-25#TRPBF's 150°C H-grade is required. | Select TPS54227PWPR only when ambient temperature stays below 85°C and cost is prioritized over extended thermal margin. |
| MP2315GJ-Z | 2MHz, 2A, 22µA IQ (no sub-µA mode); 17V max input; 5V fixed output; rated to 125°C only. | Lacks ultralow IQ and high-temp qualification - unsuitable for multi-year battery applications or harsh thermal environments. | Choose MP2315GJ-Z for cost-sensitive consumer electronics where 22µA IQ and 125°C rating are sufficient. |
Compared with TPS54227PWPR and MP2315GJ-Z, the LTC3624HMSE-25#TRPBF uniquely combines 3.5µA quiescent current, 150°C operation, and integrated Burst Mode® - making it the only option for long-life, high-reliability 5V conversion in thermally demanding battery or industrial systems.
Availability
LTC3624HMSE-25#TRPBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, emergency communication devices, and industrial sensor nodes requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LTC3624HMSE-25#TRPBF 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
Analog Devices acquired Linear Technology in 2017 and maintains its legacy of high-performance power management ICs with rigorous automotive and industrial qualification standards.
The LTC3624 family was designed specifically for high-efficiency, ultralow-IQ step-down regulation in space- and power-constrained portable and industrial systems - emphasizing thermal robustness, light-load efficiency, and ease of integration.
FAQ
What is the maximum input voltage rating for the LTC3624HMSE-25#TRPBF?
The LTC3624HMSE-25#TRPBF has an absolute maximum input voltage rating of 17V. It also features built-in VIN overvoltage protection that suspends operation above 19V and resumes automatically once VIN drops below 18.5V. This protects internal MOSFETs from transient spikes common in automotive and industrial power rails.
Does the LTC3624HMSE-25#TRPBF require external feedback resistors to set the output voltage?
No - the LTC3624HMSE-25#TRPBF is the fixed 5V output variant, so the FB pin is internally connected to the output. No external resistor divider is needed, reducing BOM count and layout area. For adjustable versions, external resistors would be required per VOUT = 0.6V × (1 + R2/R1).
How does the MODE/SYNC pin configure operating modes on the LTC3624HMSE-25#TRPBF?
The MODE/SYNC pin configures three modes: tie to INTVCC for Burst Mode® (3.5µA IQ), ground for pulse-skipping (lowest output ripple), or apply an external clock (2.25MHz ±40%) for synchronization. In forced continuous mode, apply 1V–2.4V (VINTVCC – 1.2V) to ensure switching at all loads.
What thermal performance can be expected from the LTC3624HMSE-25#TRPBF in a standard PCB layout?
With the exposed thermal pad (Pin 13) soldered to ≥2 cm² of 2-oz copper, the LTC3624HMSE-25#TRPBF achieves θJA ≈ 40°C/W. At 2A load and 12V input, power dissipation is ~0.5W - resulting in ~20°C rise above ambient, well within its 150°C max junction rating even at 85°C ambient.
Is the LTC3624HMSE-25#TRPBF RoHS-compliant and lead-free?
Yes - the LTC3624HMSE-25#TRPBF carries the #TRPBF suffix, indicating lead-free finish and RoHS compliance per EU Directive 2011/65/EU. The part marking "362425" and packaging meet Analog Devices' standard lead-free manufacturing and labeling requirements.
LTC3624HMSE-25#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-MSOP-EP
LTC3624HMSE-25#TRPBF FAQ
1.How can I place an order for LTC3624HMSE-25#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3624HMSE-25#TRPBF 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 LTC3624HMSE-25#TRPBF reliable?
The price and inventory of LTC3624HMSE-25#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3624HMSE-25#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3624HMSE-25#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3624HMSE-25#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3624HMSE-25#TRPBF?
LTC3624HMSE-25#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3624HMSE-25#TRPBF 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 LTC3624HMSE-25#TRPBF?
For technical support, including LTC3624HMSE-25#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3624HMSE-25#TRPBF requirements.
6.How does Aetrix verify that LTC3624HMSE-25#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3624HMSE-25#TRPBF 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 LTC3624HMSE-25#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3624HMSE-25#TRPBF?
All LTC3624HMSE-25#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3624HMSE-25#TRPBF, 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 LTC3624HMSE-25#TRPBF part is unused and in its original packaging.
Return procedure for LTC3624HMSE-25#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3624HMSE-25#TRPBF Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
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.
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…
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…
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…
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 …
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…
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…
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…
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…
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…
