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Monolithic Power Systems Inc. MP2152GQFU-15-Z
- Part No.:
- MP2152GQFU-15-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2152GQFU-15-Z.pdf
- Description:
- IC REG BUCK 1.5V 2A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,693
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Product details
Overview
MP2152GQFU-15-Z from Monolithic Power Systems is a fixed-output 1.5V, 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 MOSFETs. It delivers high efficiency across 2.5V–5.5V input range and supports output discharge, OVP, and hiccup-mode short-circuit protection - deployed in battery-powered portable instruments and low-voltage I/O power rails.
For engineers reviewing the MP2152GQFU-15-Z datasheet, MP2152GQFU-15-Z pinout, MP2152GQFU-15-Z application, or MP2152GQFU-15-Z equivalent, key selection considerations include its fixed 1.5V output with ±1% FB accuracy, EN-controlled power sequencing, thermal shutdown at 160°C, and compatibility with compact 1µH shielded inductors and 22µF ceramic output capacitors.
Technical Context
The MP2152GQFU-15-Z employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across input (2.5–5.5V) and output (1.5V) variations. Its internal power stage integrates complementary P/N-channel MOSFETs (75mΩ/45mΩ), enabling up to 2A continuous output without external switches.
Fault management includes cycle-by-cycle current limiting (2.8A high-side peak), VOUT over-voltage protection (115% threshold), and thermal shutdown with 30°C hysteresis. The device enters sleep mode under light load to sustain 25μA IQ, and uses zero-current detection (ZCD) to enforce DCM operation for improved light-load efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% over -40°C to +125°C - ensures stable core voltage for low-power microcontrollers and sensors. |
| Max Output Current | 2A continuous - supports single-rail powering of SoCs, FPGAs, and RF transceivers without external current boosting. |
| Quiescent Current | 25μA at VIN = 5V - enables >1-year battery life in always-on IoT sensor nodes with intermittent wake cycles. |
| Switching Frequency | 1.1MHz - allows use of small 1µH inductors and reduces EMI filtering footprint vs. lower-frequency converters. |
| 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 (up to 3.2V) sources. |
| Internal MOSFET RDS(ON) | 75mΩ (HS) / 45mΩ (LS) - minimizes conduction loss and thermal rise at full load in ultra-compact UTQFN package. |
| Soft-Start Time | 0.5ms - prevents inrush current and output overshoot during cold start in systems with large downstream capacitance. |
| Thermal Shutdown | 160°C with 30°C hysteresis - protects silicon integrity during sustained overload or poor PCB thermal design. |
Pinout & Package
MP2152GQFU-15-Z is housed in a 6-pin, 1.2mm × 1.6mm, 0.4mm pitch UTQFN package with wettable flanks for automated optical inspection. Exposed thermal pad enhances thermal performance (θJA = 65°C/W on 2-layer PCB).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-current switching loop; must be connected to solid ground plane beneath IC. |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; critical for EMI and efficiency layout. |
| 3 VIN | Input supply | Accepts 2.5–5.5V; requires local 10µF ceramic decoupling capacitor placed <2mm from pin. |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default disable; supports power sequencing. |
| 5 PG | Power good indicator | Open-drain output; asserts high when VOUT is within ±10%/+15% of 1.5V; requires external 100–500kΩ pull-up to VIN. |
| 6 OUT | Output sense & power rail | Regulated 1.5V output; connects to load and output capacitor; also serves as feedback reference point for internal regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Output Discharge | Integrated discharge MOSFET activates automatically on EN deassertion, discharging VOUT via 200Ω path - eliminates hold-up voltage in safety-critical shutdowns. |
| VOUT Over-Voltage Protection | Dynamically clamps output by turning on low-side switch until FB falls below 105% of target - prevents damage to 1.5V I/O peripherals during transient faults. |
| Hiccup-Mode Short-Circuit Protection | Enters auto-retry soft-start cycle upon current limit detection - sustains safe thermal profile during sustained shorts without latch-off or manual reset. |
| 100% Duty Cycle Operation | Supports dropout operation down to VIN ≈ VOUT - enables regulation even when input sags to 1.55V, critical for brownout resilience in battery systems. |
| Advanced Asynchronous Mode (AAM) | Enforces discontinuous conduction mode at light loads using ZCD - maintains >85% efficiency at 1mA load, extending standby time. |
Applications
| Portable Medical Sensors | Wearable Health Monitors |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio and analog front-end. IC Role / Device Role / Timing Role: Primary 1.5V supply for ADC, op-amps, and BLE SoC core logic. Use Value: 25μA IQ extends coin-cell battery life beyond 12 months; 1.1MHz switching avoids interference with 2.4GHz RF band. |
Use Scenario: Optical heart-rate sensor with photodiode array and low-power MCU. IC Role / Device Role / Timing Role: Regulated 1.5V rail for analog signal chain and digital logic. Use Value: Output discharge ensures rapid power-down of sensitive analog circuitry during sleep transitions, reducing leakage-induced offset drift. |
| Industrial Handheld Scanners | Low-Power Edge AI Modules |
Use Scenario: Barcode scanner with laser diode driver and image sensor. IC Role / Device Role / Timing Role: Main 1.5V supply for CMOS image sensor interface and FPGA configuration logic. Use Value: 2A capability supports burst-mode imaging without voltage droop; PG signal synchronizes firmware boot sequence with rail stabilization. |
Use Scenario: TinyML inference module using ultra-low-power microcontroller and SRAM-based accelerator. IC Role / Device Role / Timing Role: Core voltage regulator for sub-1V logic domains scaled to 1.5V I/O interface. Use Value: Fixed 1.5V output eliminates external resistor divider, reducing BOM count and layout area in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS62231DRYR | 1.5V fixed, 300mA max, 2.05MHz, 17μA IQ, SOT-563 | Lower current rating limits use to microcontroller cores only - not suitable for mixed-signal SoCs or RF sections. | Select when board space is constrained and load ≤300mA; avoid for 2A applications requiring full MP2152 functionality. |
| Analog Devices ADP2301AUJZ-1.5-R7 | 1.5V fixed, 600mA max, 700kHz, 30μA IQ, TSOT-6 | Lacks output discharge, PG, and hiccup-mode SCP - requires external circuitry for safe shutdown and fault recovery. | Choose only if legacy design reuse mandates ADI footprint; verify thermal margin and fault handling externally. |
Compared with TPS62231DRYR and ADP2301AUJZ-1.5-R7, MP2152GQFU-15-Z uniquely combines 2A output, 25μA IQ, integrated discharge, and PG in a 1.2mm×1.6mm UTQFN - making it the sole option for space-limited, high-current, safety-aware portable systems.
Availability
MP2152GQFU-15-Z is available at Aetrix Electronics and suitable for portable medical sensors, wearable health monitors, industrial handheld scanners, and low-power edge AI modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP2152GQFU-15-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, and global manufacturing partnerships.
The MP2152 belongs to MPS's ultra-low-IQ synchronous buck converter product line, engineered specifically for battery-powered portable electronics where extended runtime, small solution size, and robust fault protection are mandatory.
FAQ
What is the recommended input capacitor for MP2152GQFU-15-Z?
A minimum 10µF X5R/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 1µF high-frequency ceramic capacitor in parallel. Avoid tantalum or aluminum electrolytic types due to ESR and lifetime limitations.
Does MP2152GQFU-15-Z require an external feedback resistor divider?
No. MP2152GQFU-15-Z is a fixed-output variant with internal resistor network set to 1.5V; the FB pin is not connected externally. This eliminates tolerance stack-up, saves PCB area, and removes tuning complexity - unlike adjustable versions such as MP2152GQFU.
How does the power good (PG) signal behave during startup and fault conditions?
PG remains low until VOUT reaches 90% of 1.5V (1.35V), then pulls high via external pull-up after 150μs delay. It goes low again if VOUT drops below 85% (1.275V) or exceeds 115% (1.725V), providing precise rail monitoring for system sequencers and watchdog circuits.
Can MP2152GQFU-15-Z operate with a 1.8V input supply?
No. The absolute minimum input voltage is 2.5V per datasheet specifications. At 1.8V, the device remains in UVLO (under-voltage lockout) and will not switch. For sub-2.5V inputs, consider a boost-buck or LDO solution - MP2152GQFU-15-Z is not designed for single NiMH or partially discharged Li-ion operation.
Is thermal pad soldering required for reliable operation?
Yes. The exposed thermal pad on the UTQFN package must be soldered to a dedicated thermal land connected to a multi-layer internal ground plane. Omitting this connection raises junction temperature by >40°C at 2A load, risking premature thermal shutdown and reduced reliability.
What happens to the output during EN pin deactivation?
When EN is pulled low or left floating, the device disables switching and activates the internal output discharge MOSFET, sinking current through a ~200Ω path to discharge the output capacitor. This ensures VOUT falls rapidly to near 0V - critical for functional safety and multi-rail sequencing.
Does MP2152GQFU-15-Z support forced PWM mode?
No. It operates exclusively in COT-based adaptive mode - automatically transitioning 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 ZCD instead.
MP2152GQFU-15-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):
- 1.5V
- 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-15-Z FAQ
1.How can I place an order for MP2152GQFU-15-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2152GQFU-15-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-15-Z reliable?
The price and inventory of MP2152GQFU-15-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-15-Z is usually 5 days.
3.What payment methods are accepted for MP2152GQFU-15-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152GQFU-15-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2152GQFU-15-Z?
MP2152GQFU-15-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2152GQFU-15-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-15-Z?
For technical support, including MP2152GQFU-15-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152GQFU-15-Z requirements.
6.How does Aetrix verify that MP2152GQFU-15-Z is sourced from the original manufacturer or authorized distributors?
All MP2152GQFU-15-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-15-Z meets industry standards.
7.What is the process for return or replacement of MP2152GQFU-15-Z?
All MP2152GQFU-15-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2152GQFU-15-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-15-Z part is unused and in its original packaging.
Return procedure for MP2152GQFU-15-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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