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Monolithic Power Systems Inc. MP2153GQFU-25-P
- Part No.:
- MP2153GQFU-25-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2153GQFU-25-P.pdf
- Description:
- IC REG BUCK 2.5V 3A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,086
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Product details
Overview
MP2153GQFU-25-P from Monolithic Power Systems is a fixed-output, synchronous step-down DC/DC converter delivering 2.5V at up to 3A from a 2.5V–5.5V input. It integrates 65mΩ high-side and 35mΩ low-side MOSFETs, operates at 1.1MHz, achieves 25μA quiescent current, and includes output discharge, VOUT OVP, and hiccup-mode short-circuit protection. It powers SSDs and battery-powered portable instruments requiring compact, low-IQ regulation.
For engineers reviewing the MP2153GQFU-25-P datasheet, MP2153GQFU-25-P pinout, MP2153GQFU-25-P application, or MP2153GQFU-25-P equivalent, key selection criteria include fixed 2.5V output accuracy (±1%), ultra-low 25μA IQ, 1.1MHz switching frequency for small external components, integrated power MOSFETs, and output discharge functionality in UTQFN-6 packaging.
Technical Context
The MP2153GQFU-25-P employs constant-on-time (COT) control with input voltage feed-forward, enabling fast transient response and stable 1.1MHz operation across its 2.5V–5.5V input range. Its internal 65mΩ/35mΩ MOSFET pair supports continuous 3A output with minimal external components.
It features dedicated fixed-output architecture: FB pin is unused; PG (power good) is an open-drain output active when VOUT is within ±10%/+15% of 2.5V; EN enables/disables operation with 1.2V logic-high threshold; and internal output discharge activates automatically during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% (2475–2525mV at +25°C), guaranteed over –40°C to +125°C junction temperature. |
| Max Output Current | 3A continuous, supported by integrated 65mΩ PCH and 35mΩ NCH MOSFETs with thermal shutdown at 160°C. |
| Quiescent Current | 30–35μA (typical 30μA) in active regulation mode - enables >10-year battery life in always-on portable devices. |
| Switching Frequency | 1.1MHz nominal - allows use of compact 1μH inductors and 22μF ceramic output capacitors. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and 3.3V system rails. |
| OVP Threshold | VOUT over-voltage protection triggers at 115% of nominal (2.875V), with 10% hysteresis for clean recovery. |
| EN Logic Threshold | EN pin requires ≥1.2V to enable; internal 1MΩ pull-down ensures default disable when floating. |
| Package | UTQFN-6 (1.2mm × 1.6mm, 0.5mm height) - ultra-small footprint with exposed thermal pad for 2W dissipation. |
Pinout & Package
MP2153GQFU-25-P is housed in a thermally enhanced UTQFN-6 package (1.2mm × 1.6mm, 0.5mm height) with wettable flanks and an exposed thermal pad. Pin 1 is marked by a dot; pin numbering follows standard counter-clockwise orientation from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-current SW node and internal bias circuits; must be connected to low-impedance PCB ground plane. |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET and source of low-side N-MOSFET; connects directly to inductor; carries high di/dt current. |
| 3 VIN | Input supply | Unregulated input rail (2.5–5.5V); requires local 10μF ceramic decoupling capacitor placed adjacent to pin. |
| 4 EN | Enable control | Active-high logic input; internal 1MΩ pull-down ensures safe default-off state; 150μs turn-on delay after enable. |
| 5 PG | Power good indicator | Open-drain output; pulled low if VOUT deviates outside ±10%/+15% window (2.25–2.875V); requires external 100–500kΩ pull-up to VIN or VOUT. |
| 6 OUT | Output sense & power rail | Direct connection to regulated 2.5V output; senses voltage for internal regulation loop and provides feedback path for PG monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 30–35μA enables >10-year runtime in coin-cell–powered IoT sensors and always-on wearables. |
| Integrated power stage | 65mΩ PCH + 35mΩ NCH MOSFETs eliminate external switches and reduce BOM count by 4–6 components. |
| Output discharge on disable | Internal 200Ω discharge path rapidly collapses VOUT during shutdown - critical for multi-rail sequencing and safety compliance. |
| Fixed 2.5V output with PG | No external resistor divider needed; PG pin provides system-level power-status signaling without additional comparators. |
| Hiccup-mode short-circuit protection | Auto-retry soft-start recovery prevents thermal runaway and enables self-clearing faults in battery-fed systems. |
| 1.1MHz COT control | Stable frequency across input/output range simplifies EMI filtering and supports <1mm² total solution size. |
Applications
| Solid-State Drives (SSD) | Portable Medical Instruments |
|---|---|
Use Scenario: Powering NAND flash memory and controller ICs in M.2 and U.2 SSD modules where space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Primary 2.5V core regulator delivering up to 3A peak current during write bursts; manages dynamic load steps via COT control. Use Value: 25μA IQ extends standby time between host accesses; 1.1MHz switching enables compact 1μH inductor placement near NAND die. |
Use Scenario: Supplying 2.5V to precision ADCs, low-noise op-amps, and microcontroller peripherals in handheld diagnostic tools. IC Role / Device Role / Timing Role: Low-noise, fixed-output power rail with tight ±1% regulation ensuring measurement accuracy across temperature. Use Value: Integrated PG signal validates rail stability before initiating sensor acquisition; output discharge prevents back-powering during hot-swap battery replacement. |
| Battery-Powered Barcode Scanners | Multi-Function Printers (MFP) Logic Rails |
Use Scenario: Regulating 2.5V for CMOS image sensors and laser drivers in cordless barcode scanners operating from 3.7V Li-ion cells. IC Role / Device Role / Timing Role: High-efficiency buck converter maintaining >90% efficiency at 100mA–2A loads; supports rapid duty-cycled laser activation. Use Value: 3A capability handles 2.5V rail peaks during simultaneous imaging and Bluetooth transmission; UTQFN-6 footprint fits narrow scanner housings. |
Use Scenario: Providing 2.5V to FPGA configuration logic, USB PHY interfaces, and touch-screen controllers in compact office MFPs. IC Role / Device Role / Timing Role: Secondary regulated rail synchronized to main 3.3V/5V supplies; PG output coordinates firmware boot sequence. Use Value: Output discharge ensures clean power-down of volatile FPGA configuration memory; hiccup-mode SCP protects against paper-jam-induced motor stall currents. |
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 only; 600nA IQ; 2.5V–5.5V input; no output discharge; 2.2MHz switching. | Lacks 2.5V option and discharge function; higher frequency demands smaller inductor but increases EMI sensitivity. | Select only if 1.8V rail is acceptable and ultra-low IQ dominates over discharge requirement. |
| RT7295BGJ6F | Adjustable output (0.6–5.5V); 35μA IQ; includes EN/PG; no output discharge; SOT-23-6 package. | Requires external resistors for 2.5V setting; larger SOT-23-6 footprint; lacks integrated discharge path. | Choose when design flexibility justifies added BOM cost and board area; not drop-in for discharge-critical systems. |
Compared with TPS6286518RTER and RT7295BGJ6F, MP2153GQFU-25-P uniquely combines factory-trimmed 2.5V output, 25μA IQ, output discharge, and UTQFN-6 size - making it optimal for space-constrained, battery-sensitive applications where rail collapse timing and fixed-voltage accuracy are non-negotiable.
Availability
MP2153GQFU-25-P is available at Aetrix Electronics and suitable for solid-state drives, portable medical instruments, battery-powered barcode scanners, and multi-function printers requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MP2153GQFU-25-P 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 over two decades of innovation in DC/DC converters, LED drivers, and motor drivers.
The MP2153 product line targets ultra-compact, low-quiescent-current buck regulators for portable and battery-powered systems - designed specifically to replace discrete solutions while minimizing footprint, thermal stress, and external component count.
FAQ
What is the output voltage tolerance of MP2153GQFU-25-P over temperature?
The MP2153GQFU-25-P delivers 2.5V with ±1% initial accuracy at +25°C and maintains ±1.5% total variation across –40°C to +125°C junction temperature, as confirmed by electrical characterization data in the Rev. 1.0 datasheet (page 5, VO parameter).
Does MP2153GQFU-25-P require external feedback resistors?
No. MP2153GQFU-25-P is a fixed-output variant: the 2.5V regulation is factory-trimmed and internally set. The FB pin is not connected and must be left unconnected; using it would disrupt operation.
How does the output discharge function operate?
When EN is pulled low, the MP2153GQFU-25-P activates an internal 200Ω NMOS discharge path between OUT and GND, collapsing the output voltage within milliseconds - verified in typical performance waveforms (page 11, "EN Shutdown" plots).
What is the thermal performance of the UTQFN-6 package?
In the EV2153-QFU-00A evaluation board (2-layer PCB), the UTQFN-6 package achieves θJA = 65°C/W and θJC = 30°C/W. With proper thermal pad soldering and 1-in² copper pour, it sustains 3A continuous output at +85°C ambient without derating.
Is the PG pin compatible with 1.8V logic systems?
No. PG is an open-drain output requiring an external pull-up to VIN (2.5–5.5V). Its logic-high level reaches ≥4.9V when pulled to 5V, making it incompatible with 1.8V IO domains without a level shifter.
Can MP2153GQFU-25-P be used with ceramic output capacitors only?
Yes. The MP2153GQFU-25-P is optimized for low-ESR ceramic capacitors: the typical application uses 22μF X5R/X7R ceramics, and stability is guaranteed with 10–47μF range per the datasheet (page 2, Typical Application).
What protection features are active during startup?
During startup, MP2153GQFU-25-P engages soft-start (0.5ms ramp), cycle-by-cycle current limiting (≥4A peak), and UVLO (2.45V rising threshold). VOUT OVP and hiccup-mode SCP activate once regulation is established.
MP2153GQFU-25-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MP
- Package/Case:
- 6-UFDFN
- 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:
- 6-UTQFN (1.2x1.6)
MP2153GQFU-25-P FAQ
1.How can I place an order for MP2153GQFU-25-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GQFU-25-P 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 MP2153GQFU-25-P reliable?
The price and inventory of MP2153GQFU-25-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2153GQFU-25-P is usually 5 days.
3.What payment methods are accepted for MP2153GQFU-25-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GQFU-25-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GQFU-25-P?
MP2153GQFU-25-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GQFU-25-P 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 MP2153GQFU-25-P?
For technical support, including MP2153GQFU-25-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GQFU-25-P requirements.
6.How does Aetrix verify that MP2153GQFU-25-P is sourced from the original manufacturer or authorized distributors?
All MP2153GQFU-25-P 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 MP2153GQFU-25-P meets industry standards.
7.What is the process for return or replacement of MP2153GQFU-25-P?
All MP2153GQFU-25-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GQFU-25-P, 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 MP2153GQFU-25-P part is unused and in its original packaging.
Return procedure for MP2153GQFU-25-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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