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

Monolithic Power Systems Inc. MP2152GQFU-12-Z

Name: MP2152GQFU-12-Z
Brand: Monolithic Power Systems Inc.
SKU: MP2152GQFU-12-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP2152GQFU-12-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 6-UFDFN

Datasheet:: MP2152GQFU-12-Z.pdf

Description:: IC REG BUCK 1.2V 2A 6UTQFN

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Product details

Overview

MP2152GQFU-12-Z from Monolithic Power Systems is a fixed-output 1.2V, 2A synchronous step-down DC/DC converter in a 1.2mm×1.6mm UTQFN package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 75mΩ/45mΩ power MOSFETs. It delivers stable regulation from 2.5V–5.5V input for low-power portable systems requiring ultra-low standby consumption and fast transient response.

For engineers reviewing the MP2152GQFU-12-Z datasheet, MP2152GQFU-12-Z pinout, MP2152GQFU-12-Z application, or MP2152GQFU-12-Z equivalent, key selection criteria include its fixed 1.2V output accuracy (±1%), output discharge capability, EN-controlled sequencing, thermal shutdown at 160°C, and compatibility with compact 1µH inductors and 22µF ceramic output capacitors.

Technical Context

The MP2152GQFU-12-Z employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz operation across 2.5V–5.5V input and 1.2V output. Its internal high-side P-FET (75mΩ) and low-side N-FET (45mΩ) enable up to 2A continuous output with minimal external components.

It integrates cycle-by-cycle current limiting (2.8A peak), hiccup-mode short-circuit protection, VOUT over-voltage protection (115% of 1.2V = 1.38V), and automatic output discharge during disable. The fixed 1.2V version includes a dedicated open-drain Power Good (PG) output with ±10%/+15% window detection and 150μs delay.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.2V ±1% (1182–1218mV over –40°C to +125°C); enables precise core rail supply for low-voltage processors.
Max Output Current	2A continuous; supports single-rail power delivery for SoCs, FPGAs, and wireless baseband ICs without external current sensing.
Quiescent Current	30–35μA (typical, no switching); sustains >100-hour battery life in always-on sensor nodes and wearables.
Switching Frequency	1.1MHz nominal; allows use of small 1µH shielded inductors and reduces EMI filtering burden in space-constrained PCBs.
Input Voltage Range	2.5V to 5.5V; compatible with single-cell Li-ion (3.0–4.2V), USB-powered (5V), and dual-cell alkaline (3.2V) sources.
Thermal Shutdown	160°C with 30°C hysteresis; prevents permanent damage during sustained overload or poor heatsinking in sealed enclosures.
Power Good Output	Open-drain PG with 150μs delay and <400Ω R_DS(ON); provides reliable system reset signaling for microcontrollers and PMICs.

Pinout & Package

MP2152GQFU-12-Z uses a 6-pin, 1.2mm × 1.6mm UTQFN package with wettable flanks and 0.4mm pitch. Thermal pad on underside improves power dissipation (θ_JA = 65°C/W on 2-layer board).

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Power ground reference	Primary return path for high-frequency switch node current; must connect directly to solid ground plane under thermal pad.
2 SW	Switching node	Drain of internal high-side P-MOSFET; connects directly to inductor; requires tight layout to minimize ringing and EMI.
3 VIN	Input supply	2.5–5.5V unregulated input; requires ≥4.7μF X5R/X7R ceramic capacitor placed within 2mm of pin.
4 EN	Enable control	Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default-disable; supports power sequencing with external MCU GPIO.
5 PG	Power good indicator	Open-drain output; requires external 100–500kΩ pull-up to VIN or VOUT; asserts high when regulated 1.2V output is within ±10%/+15% window.
6 OUT	Output power rail	Regulated 1.2V output; connects to load and output capacitor; routed with low-impedance trace to minimize IR drop and noise coupling.

Key Features

Feature	Design Value
Ultra-low quiescent current	30–35μA in no-switching mode enables >1-year battery life in coin-cell-powered IoT endpoints.
Integrated power MOSFETs	75mΩ high-side + 45mΩ low-side switches eliminate external FETs and gate drivers, reducing BOM count by 4–6 components.
Output discharge function	Internal 200Ω discharge path activates automatically on EN deassertion, ensuring rapid VOUT collapse for safe hot-swap and state retention.
Constant-on-time control	Eliminates loop compensation components; achieves <10μs load transient recovery with 20mV overshoot into 1A step load.
VOUT over-voltage protection	Detects >1.38V (115% of 1.2V) and forces low-side conduction to clamp output, preventing damage to downstream 1.2V I/O rails.

Applications

Wireless Networking Cards

Portable Medical Instruments

Use Scenario: Powering 2.4GHz/5GHz Wi-Fi/BT SoC and RF front-end on mini-PCIe or M.2 modules in handheld scanners and access points.

IC Role / Device Role / Timing Role: Primary 1.2V core supply for ARM Cortex-M4/M7 processors and integrated PHYs; delivers clean, low-noise rail with <20mV ripple at 2A.

Use Value: 1.1MHz switching avoids interference with 2.4GHz ISM band; 25μA IQ extends battery runtime between firmware updates.

Use Scenario: Supplying ADC, sensor interface, and BLE radio in portable glucose meters and pulse oximeters powered by CR2032 coin cells.

IC Role / Device Role / Timing Role: Main system regulator converting 3.0–3.3V battery to precision 1.2V analog/digital rail; maintains regulation down to 2.5V input.

Use Value: Output discharge ensures rapid power-down to preserve sensor calibration state; ±1% VOUT accuracy guarantees consistent ADC reference scaling.

Low-Power Industrial Sensors

Solid-State Drives (SSD)

Use Scenario: Providing 1.2V core voltage to ultra-low-power microcontrollers and MEMS accelerometers in battery-operated condition monitoring nodes.

IC Role / Device Role / Timing Role: Always-on power stage enabling sub-100μA sleep current; supports wake-on-event via EN pin controlled by external interrupt.

Use Value: 30μA IQ minimizes self-discharge; thermal shutdown (160°C) protects against enclosure overheating in enclosed DIN-rail housings.

Use Scenario: Generating 1.2V VDDQ for NAND flash memory and controller in M.2 SATA/NVMe SSDs with strict thermal envelope constraints.

IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator delivering 2A peak current during burst writes; operates in CCM at full load.

Use Value: UTQFN package (1.2×1.6mm) fits tight spacing near NAND packages; 75mΩ/45mΩ R_DS(ON) limits conduction loss to <120mW at 2A.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-output 1.2V buck converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TI TPS62231DRYR	1.2V fixed, 300mA max, 2.05MHz, 17μA IQ, SOT-563 (1.6×1.6mm)	Limited to 300mA; suitable only for ultra-low-power MCUs, not 2A loads	Select only if output current ≤300mA and board space permits larger SOT-563 footprint.
Analog Devices ADP2301AUJZ-1.2-R7	1.2V fixed, 600mA max, 700kHz, 30μA IQ, TSOT-23-6 (2.9×1.6mm)	Lower current rating and larger package; lacks output discharge and PG pin	Choose only for cost-sensitive, non-critical 600mA applications where PG signaling and fast discharge are unnecessary.

Compared with TPS62231DRYR and ADP2301AUJZ-1.2-R7, MP2152GQFU-12-Z uniquely delivers 2A at 1.2V in a 1.2×1.6mm UTQFN with integrated PG, discharge, and 1.1MHz operation-making it the sole fit for space-constrained, high-current portable systems requiring full feature integration.

Availability

MP2152GQFU-12-Z is available at Aetrix Electronics and suitable for wireless networking cards, portable medical instruments, low-power industrial sensors, and solid-state drives requiring stable component supply across extended production lifecycles.

Supply support for MP2152GQFU-12-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 analog and power ICs, with design centers in the US, China, and Taiwan.

The MP2152 product line targets ultra-low-power, space-constrained DC/DC conversion in portable, battery-powered, and always-on edge devices-emphasizing minimal IQ, small footprint, and robust protection features.

FAQ

What is the recommended input capacitor for MP2152GQFU-12-Z?

A minimum 4.7μF X5R or X7R ceramic capacitor rated ≥6.3V must be placed within 2mm of the VIN and GND pins. For optimal EMI suppression and transient response, pair it with a 0.1μF high-frequency ceramic capacitor in parallel. Total input capacitance should exceed 10μF for 2A load steps.

Does MP2152GQFU-12-Z require an external feedback resistor divider?

No. MP2152GQFU-12-Z is a fixed-output variant with internal resistor network set to 1.2V; the FB pin is not connected and must remain floating. Only adjustable versions (e.g., MP2152GQFU) require external R1/R2 dividers.

How does the output discharge function operate during shutdown?

When EN is pulled low, the internal 200Ω discharge MOSFET connects OUT to GND, discharging the output capacitor with a time constant of ~4.4ms (for 22μF). This ensures VOUT falls below 0.1V within 20ms, meeting safe power-down requirements for FPGA configuration retention.

Can MP2152GQFU-12-Z be used with a 1.5μH inductor?

Yes. The datasheet recommends 1–2.2μH inductors; a 1.5μH shielded metal-alloy inductor (e.g., Würth 74437324115) is ideal. At 2A, peak inductor current remains below saturation, and 1.1MHz operation ensures minimal core loss and temperature rise (<15°C rise at full load).

What is the maximum allowable ambient temperature for continuous 2A operation?

At 2A output and 5V input, the junction temperature reaches 125°C at ~65°C ambient on a 2-layer PCB (θ_JA = 65°C/W). To maintain TJ ≤ 125°C continuously, limit ambient temperature to ≤60°C with adequate copper area and airflow, or reduce load current above that point per the derating curve.

Is the PG pin compatible with 1.8V logic systems?

Yes. The PG pin is open-drain and requires an external pull-up resistor. To interface with 1.8V logic, pull PG to 1.8V (not VIN) using a 220kΩ resistor. The internal MOSFET sinks ≤0.4V at 1mA, ensuring valid LOW level for 1.8V I/O standards.

Does MP2152GQFU-12-Z support forced PWM mode?

No. MP2152GQFU-12-Z operates exclusively in COT mode with automatic transition between CCM, DCM, and sleep mode based on load. It lacks a MODE pin or external control to force continuous PWM; light-load efficiency is optimized via AAM and ZCD instead.

MP2152GQFU-12-Z 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:: 2A

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)

MP2152GQFU-12-Z FAQ

1.How can I place an order for MP2152GQFU-12-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP2152GQFU-12-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 MP2152GQFU-12-Z reliable?

The price and inventory of MP2152GQFU-12-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2152GQFU-12-Z is usually 5 days.

3.What payment methods are accepted for MP2152GQFU-12-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152GQFU-12-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP2152GQFU-12-Z?

MP2152GQFU-12-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP2152GQFU-12-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 MP2152GQFU-12-Z?

For technical support, including MP2152GQFU-12-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152GQFU-12-Z requirements.

6.How does Aetrix verify that MP2152GQFU-12-Z is sourced from the original manufacturer or authorized distributors?

All MP2152GQFU-12-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 MP2152GQFU-12-Z meets industry standards.

7.What is the process for return or replacement of MP2152GQFU-12-Z?

All MP2152GQFU-12-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2152GQFU-12-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 MP2152GQFU-12-Z part is unused and in its original packaging.

Return procedure for MP2152GQFU-12-Z:

1.Submit a request within 90 days.

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

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