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Monolithic Power Systems Inc. MP2153GTF-25-Z
- Part No.:
- MP2153GTF-25-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2153GTF-25-Z.pdf
- Description:
- IC REG BUCK 2.5V 3A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:2,438
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Product details
Overview
MP2153GTF-25-Z from Monolithic Power Systems is a fixed-output, synchronous step-down DC/DC converter delivering 3A continuous output at 2.5V with 25μA quiescent current, 1.1MHz switching frequency, and integrated 65mΩ/35mΩ MOSFETs in SOT563 package. It operates from 2.5V–5.5V input and supports output discharge, OVP, and hiccup-mode short-circuit protection - deployed in battery-powered SSDs and portable instrumentation.
For engineers reviewing the MP2153GTF-25-Z datasheet, MP2153GTF-25-Z pinout, MP2153GTF-25-Z application, or MP2153GTF-25-Z equivalent, key selection criteria include fixed 2.5V ±1% output accuracy, ultra-low IQ for standby power integrity, EN-controlled sequencing, thermal shutdown at 160°C, and compatibility with 1μH inductors and 22μF ceramic output capacitors.
Technical Context
The MP2153GTF-25-Z uses constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across its 2.5V–5.5V input range. Its internal high-side P-channel and low-side N-channel MOSFETs (65mΩ/35mΩ) enable high-efficiency regulation down to 2.5V with minimal external components.
It integrates output discharge via an internal MOSFET when disabled, provides VOUT over-voltage protection triggered at 115% of nominal (2.875V), and enters hiccup-mode short-circuit protection with valley current limit of 3.5A and peak limit of 4A - all within a thermally optimized SOT563 package with θJA = 80°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% (2.475–2.525V) - ensures stable core rail for low-voltage logic without external feedback resistors. |
| Max Output Current | 3A continuous - supports high-current peripherals in compact SSD and portable instrument designs. |
| Quiescent Current | 25μA - enables >1-year battery life in always-on sensor nodes and standby modes. |
| Switching Frequency | 1.1MHz - allows use of small 1μH inductors and reduces EMI filtering burden. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and regulated 3.3V supplies. |
| Internal MOSFET RDS(ON) | 65mΩ (HS) / 35mΩ (LS) - minimizes conduction loss and thermal rise at full load. |
| Thermal Shutdown | 160°C with 30°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
SOT563 (1.6mm × 1.6mm) package with exposed pad for thermal enhancement; 6-pin layout optimized for minimal board area and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Power ground reference | Primary return path for high-current SW node and IC bias; must connect to low-impedance ground plane. |
| SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; carries high di/dt ripple current. |
| VIN | Input supply | Unregulated 2.5–5.5V source; requires local 10μF ceramic decoupling adjacent to pin. |
| EN | Enable control | Active-high logic input (1.2V threshold); floating or pulled low disables device and activates output discharge. |
| FB | Feedback (not used) | Not connected in fixed-output variants; internally tied to reference; leave unconnected per datasheet. |
| OUT | Output sense & power rail | Monitors regulated 2.5V output; connects to output capacitor and load; senses VOUT for OVP and PG functions. |
Key Features
| Feature | Design Value |
|---|---|
| Output Discharge | Internal MOSFET discharges output capacitor on disable - eliminates residual voltage that could interfere with system reset or hot-swap sequencing. |
| VOUT Over-Voltage Protection | Triggers at 115% of 2.5V (2.875V); forces low-side FET on to sink current until recovery - protects downstream 2.5V logic from transient overvoltage events. |
| Constant-On-Time Control | Delivers <10μs load transient response with no external compensation - simplifies design for dynamic loads like SSD NAND flash bursts. |
| Hiccup-Mode Short-Circuit Protection | Shuts down power stage, discharges soft-start cap, then retries - prevents thermal runaway while enabling automatic recovery after fault removal. |
| 100% Duty Cycle Capability | Maintains regulation even as VIN approaches VOUT (e.g., 2.7V → 2.5V) - critical for brownout resilience in battery-fed systems. |
Applications
| Solid-State Drives (SSD) | Portable Instruments |
|---|---|
Use Scenario: Powering NAND flash controller and DRAM cache in M.2 SATA or PCIe Gen3 SSD modules. IC Role / Device Role / Timing Role: Primary 2.5V power rail regulator with fast transient response to handle burst read/write currents up to 3A. Use Value: 25μA IQ extends battery-backed write-cache hold time; 1.1MHz switching enables compact 1.6mm×1.6mm footprint matching SSD form factor constraints. | Use Scenario: Supplying precision analog front-end (AFE) and microcontroller core in handheld multimeters or gas analyzers. IC Role / Device Role / Timing Role: Fixed 2.5V rail generator with tight 1% accuracy and low noise for ADC reference and digital logic. Use Value: Integrated MOSFETs eliminate external FET layout sensitivity; output discharge ensures clean power-down for calibration stability. |
| Battery-Powered Devices | Multi-Function Printers |
Use Scenario: Regulating main system voltage in Bluetooth LE sensors or wearable health monitors powered by coin cells or LiPo. IC Role / Device Role / Timing Role: Ultra-low-IQ buck converter enabling multi-year operation in sleep mode between sensor readings. Use Value: 25μA IQ directly translates to sub-μA average system current; SOT563 package fits under 10mm² PCB area budgets. | Use Scenario: Providing 2.5V auxiliary rail for image sensor interface and motor driver logic in compact inkjet printers. IC Role / Device Role / Timing Role: Secondary voltage regulator supporting mixed-signal subsystems with hiccup-mode fault tolerance. Use Value: Thermal shutdown and OVP protect against intermittent short circuits in paper jam scenarios; EN pin enables coordinated power sequencing with main 12V rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6286518RTER | Fixed 1.8V output; 2.5V–5.5V input; 3A; 17μA IQ; 2.25MHz switching | Higher frequency enables smaller inductors but increases switching loss above 2A | Select if 1.8V rail required and board space permits higher-frequency magnetics |
| RT7295BGJ8F | Fixed 2.5V output; 2.7V–5.5V input; 3A; 35μA IQ; 1.5MHz switching; no output discharge | Lacks integrated output discharge and has narrower VIN range | Choose only if output discharge is not needed and input stays ≥2.7V |
Compared with TPS6286518RTER and RT7295BGJ8F, MP2153GTF-25-Z uniquely combines fixed 2.5V output, 25μA IQ, output discharge, and 2.5V minimum input - making it optimal for battery-sensitive, space-constrained 2.5V rail applications where controlled power-down is mandatory.
Availability
MP2153GTF-25-Z is available at Aetrix Electronics and suitable for solid-state drives, portable instrumentation, and battery-powered devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP2153GTF-25-Z 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with design centers in the US, China, and Taiwan.
The MP2153 product line targets ultra-compact, low-IQ DC/DC conversion for space- and energy-constrained portable and storage applications - emphasizing integration, thermal efficiency, and ease of use in high-volume consumer and industrial designs.
FAQ
What is the recommended inductor value and type for MP2153GTF-25-Z?
A 1μH shielded power inductor with 27mΩ DCR and 4.5A saturation current is specified in the datasheet. Shielded construction minimizes EMI coupling; saturation current must exceed 3.5A peak to avoid collapse during startup or transient load steps.
Does MP2153GTF-25-Z require external feedback resistors?
No. As a fixed-output variant, MP2153GTF-25-Z has internal feedback network set to 2.5V; the FB pin is unused and must be left unconnected. External resistors are only required for adjustable versions like MP2153GTF.
How does the output discharge function operate?
When EN is pulled low or left floating, an internal MOSFET connects OUT to GND through a ~200Ω path, discharging the output capacitor. This occurs automatically and ensures VOUT falls below 0.4V within 1ms for reliable system reset sequencing.
What thermal derating applies at elevated ambient temperatures?
At 85°C ambient, maximum continuous output current drops to ~2.2A (per Figure 9). Derating follows a linear slope from 3A at 25°C to 0A at 125°C junction temperature, constrained by θJA = 80°C/W and 1.5W max power dissipation in SOT563.
Is MP2153GTF-25-Z compatible with ceramic output capacitors only?
Yes - the COT control architecture is optimized for low-ESR ceramic capacitors (e.g., 22μF X5R/X7R 0805). Aluminum or tantalum caps introduce instability due to higher ESR and are not supported per design validation.
What is the startup behavior when EN is asserted?
Upon EN rising above 1.2V, the device initiates a 0.5ms soft-start ramp on VOUT, limiting inrush current. Switching begins only after soft-start completes; no external soft-start capacitor is needed due to internal timing.
Does MP2153GTF-25-Z include power good (PG) indication?
No - PG is only available on fixed-output variants with "-Z" suffix in the part number (e.g., MP2153GTF-25-Z has no PG pin). The "-Z" suffix denotes tape-and-reel packaging, not functional enhancement; PG is exclusive to UTQFN-6 fixed versions like MP2153GQFU-25.
MP2153GTF-25-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MP
- Package/Case:
- SOT-563, SOT-666
- 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):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- Frequency - Switching:
- 1.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
MP2153GTF-25-Z FAQ
1.How can I place an order for MP2153GTF-25-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GTF-25-Z 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 MP2153GTF-25-Z reliable?
The price and inventory of MP2153GTF-25-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2153GTF-25-Z is usually 5 days.
3.What payment methods are accepted for MP2153GTF-25-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GTF-25-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GTF-25-Z?
MP2153GTF-25-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GTF-25-Z 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 MP2153GTF-25-Z?
For technical support, including MP2153GTF-25-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GTF-25-Z requirements.
6.How does Aetrix verify that MP2153GTF-25-Z is sourced from the original manufacturer or authorized distributors?
All MP2153GTF-25-Z 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 MP2153GTF-25-Z meets industry standards.
7.What is the process for return or replacement of MP2153GTF-25-Z?
All MP2153GTF-25-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GTF-25-Z, 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 MP2153GTF-25-Z part is unused and in its original packaging.
Return procedure for MP2153GTF-25-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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