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Monolithic Power Systems Inc. MP2153GQFU-12-P
- Part No.:
- MP2153GQFU-12-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2153GQFU-12-P.pdf
- Description:
- IC REG BUCK 1.2V 3A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,370
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Product details
Overview
MP2153GQFU-12-P from Monolithic Power Systems is a fixed-output 1.2V, 3A synchronous step-down DC/DC converter in UTQFN-6 (1.2mm×1.6mm) package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 65mΩ/35mΩ MOSFETs. It delivers high efficiency in battery-powered SSDs and portable instruments with output discharge, VOUT OVP, and hiccup-mode short-circuit protection.
For engineers reviewing the MP2153GQFU-12-P datasheet, MP2153GQFU-12-P pinout, MP2153GQFU-12-P application, or MP2153GQFU-12-P equivalent, key selection criteria include fixed 1.2V output accuracy (±1%), EN-controlled power sequencing, thermal shutdown at 160°C, and compatibility with 1μH inductors and 22μF ceramic output capacitors in space-constrained designs.
Technical Context
The MP2153GQFU-12-P employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across 2.5V–5.5V input range. Its internal P-channel high-side (65mΩ) and N-channel low-side (35mΩ) MOSFETs enable up to 3A continuous output with 100% duty-cycle capability for low-dropout operation.
Fault management includes cycle-by-cycle current limiting (4A peak), thermal shutdown (160°C, 30°C hysteresis), output over-voltage protection (115% VFB threshold), and hiccup-mode recovery during sustained short circuits. The fixed 1.2V version replaces FB with PG - an open-drain power-good indicator with 150μs delay and ±5% window detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±1% (guaranteed over -40°C to +125°C junction temp) |
| Max Output Current | 3A continuous - supports compact 1μH inductor and 22μF output capacitor in SSD power rails |
| Quiescent Current | 30–35μA - enables >100-hour standby in battery-powered devices without compromising light-load efficiency |
| Switching Frequency | 1.1MHz - allows use of small, low-profile inductors while maintaining EMI control in dense PCB layouts |
| 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 |
| Power Good (PG) | Open-drain output with 150μs delay and ±5% regulation window - provides reliable system reset signaling |
| Thermal Shutdown | 160°C with 30°C hysteresis - protects against sustained overload in sealed enclosures without external thermal monitoring |
Pinout & Package
MP2153GQFU-12-P uses the UTQFN-6 (1.2mm × 1.6mm, 0.5mm pitch) package with wettable flanks for automated optical inspection. Pin 1 is marked by a dot; top marking "GP" identifies the fixed 1.2V variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Power ground reference | Primary return path for high-current SW node and IC bias; requires low-impedance connection to PCB ground plane |
| SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; carries full switching current and high di/dt |
| VIN | Main supply input | Accepts 2.5–5.5V unregulated input; requires local 10μF ceramic decoupling placed within 2mm of pin |
| EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default disable; controls power sequencing and output discharge |
| PG | Power good indicator | Open-drain output requiring external 100–500kΩ pull-up to VIN; asserts high when VOUT is within ±5% of 1.2V |
| OUT | Output sense & power rail | Direct connection to output capacitor; senses VOUT for regulation and OVP; not used for feedback in fixed-Vo versions |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 30–35μA in operating mode - extends battery life in always-on portable instrumentation |
| Integrated power MOSFETs | 65mΩ high-side P-MOSFET + 35mΩ low-side N-MOSFET - eliminates external FETs and gate drivers, reducing BOM count by ≥4 components |
| Output discharge on disable | Internal 200Ω discharge path activated when EN = low - prevents residual voltage hold-up in multi-rail systems |
| VOUT over-voltage protection | 115% VFB dynamic regulation with -1.5A forced low-side conduction - clamps transient overshoot without latch-off |
| Constant-on-time control | 1.1MHz switching stabilized via VIN feed-forward - eliminates loop compensation components and ensures <10μs load transient response |
Applications
| Solid-State Drives (SSD) | Portable Medical Instruments |
|---|---|
Use Scenario: Powering NAND flash controller and DRAM cache in M.2 SATA/NVMe SSD modules with strict thermal envelope. IC Role / Device Role / Timing Role: Primary 1.2V core regulator delivering 3A peak current during write bursts; PG signal synchronizes firmware initialization. Use Value: 25μA IQ and 90%+ efficiency at 1A enable >200hr standby; ultra-small UTQFN-6 footprint saves >1.5mm² vs. SOT563 alternatives. | Use Scenario: Supplying 1.2V to low-power ARM Cortex-M4 microcontrollers and analog front-ends in handheld glucose meters and pulse oximeters. IC Role / Device Role / Timing Role: Always-on system regulator with EN-controlled wake/sleep sequencing; output discharge prevents back-powering during battery swap. Use Value: 1.1MHz switching avoids audible noise in sensitive analog sections; ±1% VOUT accuracy ensures ADC reference stability. |
| Battery-Powered IoT Sensors | Multi-Function Printers (MFP) |
Use Scenario: Regulating 1.2V for BLE SoCs and MEMS sensors in asset-tracking tags operating on coin cells. IC Role / Device Role / Timing Role: Standby regulator with deep-sleep mode; PG confirms valid rail before sensor sampling; EN enables MCU-controlled power gating. Use Value: 35μA max IQ extends 220mAh CR2032 battery life to >5 years in 10s wakeup intervals; hiccup-mode SCP prevents cell damage during accidental shorts. | Use Scenario: Providing 1.2V to ASICs and FPGA configuration logic in compact MFP mainboards where board area is constrained. IC Role / Device Role / Timing Role: Secondary rail generator with fast transient response to handle bursty print engine loads; PG coordinates FPGA configuration sequence. Use Value: 100% duty-cycle capability maintains regulation during 5.5V input droop; thermal shutdown at 160°C prevents derating in enclosed chassis. |
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 |
|---|---|---|---|
| TPS6286418RTER | 1.8V fixed output; 4A rating; 1.8MHz fSW; 17μA IQ; 1.06mm × 1.46mm DSBGA | Higher output voltage, higher current, smaller package - unsuitable for 1.2V systems without redesign | Select only if upgrading to 1.8V rail and requiring tighter layout constraints than UTQFN-6 permits. |
| RT7295BGJ8F | 1.2V fixed output; 3A rating; 1.5MHz fSW; 35μA IQ; 1.6mm × 1.6mm WLCSP | Same VOUT and IOUT; higher fSW increases EMI risk; WLCSP requires specialized reflow and inspection | Prefer only for designs already committed to WLCSP assembly and needing marginally faster transient response. |
Compared with TPS6286418RTER and RT7295BGJ8F, MP2153GQFU-12-P offers optimal balance of 1.2V precision, proven thermal performance in UTQFN-6, and robust hiccup-mode fault recovery - making it the preferred choice for cost-sensitive, thermally constrained SSD and portable instrument designs.
Availability
MP2153GQFU-12-P is available at Aetrix Electronics and suitable for solid-state drives, portable medical instruments, battery-powered IoT sensors, and multi-function printers requiring stable component supply with no minimum order quantity.
Supply support for MP2153GQFU-12-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, founded in 1997 and headquartered in Kirkland, Washington.
The MP2153 product line targets ultra-compact, low-IQ DC/DC conversion for battery-powered and space-constrained applications - emphasizing integration, thermal resilience, and ease of use in consumer, computing, and industrial edge devices.
FAQ
What is the recommended input capacitor for MP2153GQFU-12-P?
A 10μF X5R/X7R ceramic capacitor placed within 2mm of the VIN and GND pins is required to suppress high-frequency switching noise and prevent input voltage droop during load transients. A 1μF ceramic in parallel improves high-frequency decoupling. Total effective capacitance must remain ≥10μF after DC bias derating.
Does MP2153GQFU-12-P require external feedback resistors?
No. MP2153GQFU-12-P is a fixed-output variant with internal resistor divider set to 1.2V; the FB pin is omitted and replaced by PG. External resistors are only needed for adjustable versions like MP2153GQFU. Using resistors with this part will cause malfunction or damage.
How does the output discharge function operate?
When EN is pulled low, the internal 200Ω discharge MOSFET activates between OUT and GND, discharging the output capacitor to <0.4V within ~1ms (dependent on COUT value). This prevents back-powering of upstream circuitry and enables safe hot-swap or multi-rail sequencing in complex power systems.
Can MP2153GQFU-12-P operate with a 2.2V input?
No. The absolute minimum input voltage is 2.5V per datasheet specifications. At 2.2V, the device remains in under-voltage lockout (UVLO) with UVLOR = 2.45V (typical), preventing startup. Operation below 2.5V risks unstable regulation or failure to initiate soft-start.
What is the maximum allowable PCB temperature rise for continuous 3A operation?
At TA = +25°C, the UTQFN-6 package has θJA = 65°C/W. With 3A output at 1.2V (3.6W output), assuming 90% efficiency (0.4W dissipation), the junction rise is ~26°C. To stay below TJ(max) = 125°C, ambient must remain ≤99°C - meaning ≤74°C PCB temperature rise is permissible under worst-case convection conditions.
Is the PG pin compatible with 1.8V logic systems?
Yes. PG is open-drain and requires an external pull-up resistor. When pulled to 1.8V, PG asserts high at ≥0.9V (50% of pull-up) and sinks fully to GND when active. Ensure the pull-up resistor value (100–500kΩ) limits current to <10μA to avoid loading the 1.8V rail during assertion.
Does MP2153GQFU-12-P support forced PWM mode?
No. MP2153GQFU-12-P uses constant-on-time (COT) control with automatic transition between CCM, DCM, and sleep mode based on load. There is no pin or register to force continuous PWM; light-load efficiency is optimized via AAM and sleep modes instead.
MP2153GQFU-12-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):
- 1.2V
- 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-12-P FAQ
1.How can I place an order for MP2153GQFU-12-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GQFU-12-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-12-P reliable?
The price and inventory of MP2153GQFU-12-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-12-P is usually 5 days.
3.What payment methods are accepted for MP2153GQFU-12-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GQFU-12-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GQFU-12-P?
MP2153GQFU-12-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GQFU-12-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-12-P?
For technical support, including MP2153GQFU-12-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GQFU-12-P requirements.
6.How does Aetrix verify that MP2153GQFU-12-P is sourced from the original manufacturer or authorized distributors?
All MP2153GQFU-12-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-12-P meets industry standards.
7.What is the process for return or replacement of MP2153GQFU-12-P?
All MP2153GQFU-12-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GQFU-12-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-12-P part is unused and in its original packaging.
Return procedure for MP2153GQFU-12-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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