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Monolithic Power Systems Inc. MP2152DGQFU-P
- Part No.:
- MP2152DGQFU-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2152DGQFU-P.pdf
- Description:
- IC REG BUCK ADJ 2A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,095
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Product details
Overview
MP2152DGQFU-P from Monolithic Power Systems is a synchronous step-down DC-DC converter IC with integrated 75mΩ high-side and 45mΩ low-side MOSFETs, delivering up to 2A continuous output current across a 2.5V–5.5V input range while regulating output down to 0.6V. It employs constant-on-time (COT) control for fast transient response and features fast output discharge, 1% FB voltage accuracy, and 25μA quiescent current-optimized for solid-state drives and portable battery-powered systems.
For engineers reviewing the MP2152DGQFU-P datasheet, MP2152DGQFU-P pinout, MP2152DGQFU-P application, or MP2152DGQFU-P equivalent, key selection considerations include its UTQFN-6 (1.2mm×1.6mm) package, 1.1MHz switching frequency, EN-controlled power sequencing, thermal shutdown at 160°C, and OVP/SCP/hiccup-mode fault handling in compact low-voltage power rails.
Technical Context
The MP2152DGQFU-P uses constant-on-time (COT) control with VIN feed-forward to maintain stable 1.1MHz switching frequency across input and output voltage variations. Its internal P-channel HS-FET and N-channel LS-FET enable synchronous rectification with 75mΩ/45mΩ RDS(ON), supporting 100% duty cycle operation and fast load transient recovery via zero-current detection (ZCD).
It integrates soft-start (1ms), adjustable output via external resistor divider (FB pin), and active output discharge (13Ω internal path) during shutdown. Protection includes cycle-by-cycle over-current (4A peak HS limit), hiccup-mode short-circuit protection, 115% VFB-based OVP with 12μs delay, and thermal shutdown with 30°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 2.5V to 5.5V - supports single-cell Li-ion, USB, and 3.3V/5V rail inputs without external LDO pre-regulation |
| Output current | 2A continuous - sustains full load under worst-case thermal conditions (TJ ≤ 125°C) in UTQFN-6 package |
| Switching frequency | 1.1MHz - enables use of small 1μH inductors and reduces EMI filtering requirements |
| Quiescent current | 25μA - minimizes standby power loss in always-on battery-backed subsystems |
| Feedback voltage | 600mV ±1% - sets precise output regulation point; enables 0.6V minimum VOUT with external resistor divider |
| HS/LS RDS(ON) | 75mΩ / 45mΩ - reduces conduction losses and improves efficiency above 500mA load |
| Output discharge resistance | 13Ω - actively discharges output capacitor within milliseconds after EN deactivation, preventing floating rail issues |
Pinout & Package
MP2152DGQFU-P is housed in an ultra-small UTQFN-6 package (1.2mm × 1.6mm, 0.4mm height, 0.4mm pitch), optimized for space-constrained portable and SSD applications. Thermal performance is enhanced by an exposed thermal pad connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for HS-FET, LS-FET, and internal bias circuits; must be low-impedance connection to PCB thermal pad |
| 2 SW | Switching node | Drain of internal P-channel HS-FET; connects directly to inductor; carries high di/dt square wave requiring tight layout and minimal trace inductance |
| 3 VIN | Input supply | Unregulated 2.5V–5.5V source; requires local 22μF ceramic decoupling capacitor placed within 2mm of pin |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default-off behavior; controls power sequencing and fast output discharge activation |
| 5 FB | Feedback sense | High-impedance input monitoring resistor divider output; 600mV reference sets VOUT = 0.6V × (1 + R1/R2); 100nA bias current minimizes divider error |
| 6 OUT | Output voltage sense | Direct connection to regulated output rail; used for output voltage sensing and internal OVP monitoring; not a power output pin but a high-impedance sense node |
Key Features
| Feature | Design Value |
|---|---|
| Constant-on-time (COT) control | Enables <10μs load transient response without external compensation components; maintains stable fSW across VIN/VOUT ranges via VIN feed-forward |
| Fast output discharge | 13Ω internal NMOS discharge path activated automatically when EN = low, reducing VOUT to <100mV within ~1ms for safe system power-down |
| Hiccup-mode short-circuit protection | Disables switching, discharges soft-start capacitor, then retries startup-limits average power dissipation during sustained overload or output short |
| 1% FB voltage accuracy | Ensures ±12mV absolute output tolerance at 1.2V setting, critical for core voltage regulation in SSD controllers and FPGA I/O banks |
| Ultra-low 25μA quiescent current | Extends battery runtime in sleep mode; achieved via intelligent block gating and low-IQ bias design without sacrificing start-up time or regulation precision |
Applications
| Solid-State Drive (SSD) Power Rail | Portable Instrument Core Supply |
|---|---|
|
Use Scenario: Regulating 1.2V/2A for NAND flash controller and DRAM cache in M.2 NVMe SSD modules with strict size and thermal constraints. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated core voltage; COT control ensures rapid response to burst read/write current transients. Use Value: 90% peak efficiency at 1.2V/2A eliminates need for heatsinking; UTQFN-6 footprint saves >30% board area vs. SOT563 alternatives. |
Use Scenario: Generating 1.8V/1.5A for microcontroller cores and ADC analog supplies in handheld test equipment operating from single Li-ion cell. IC Role / Device Role / Timing Role: Main PMIC buck stage enabling dynamic voltage scaling; EN pin synchronizes with MCU wake-up signals for zero-quiescent-power sleep states. Use Value: 25μA IQ extends battery life beyond 100 hours in standby; fast discharge prevents latch-up during hot-swap battery replacement. |
| Battery-Powered Wireless Sensor Node | Multi-Function Printer Logic Supply |
|
Use Scenario: Delivering 3.3V/1A to BLE SoC and environmental sensors in coin-cell–powered IoT nodes requiring multi-year operation. IC Role / Device Role / Timing Role: High-efficiency step-down converter operating across full battery discharge curve (4.2V → 2.5V); AAM mode extends light-load efficiency. Use Value: Maintains >85% efficiency down to 10mA load; 1.1MHz fSW allows use of miniature 1.2×1.6mm shielded inductor (MPL-AL4020-1R0). |
Use Scenario: Providing 2.5V/2A to ASIC logic and interface circuitry in compact office printers where thermal density and EMI are critical. IC Role / Device Role / Timing Role: Secondary buck regulator downstream of main 12V rail; OVP and SCP protect sensitive print engine controllers from bus faults. Use Value: Integrated 115% OVP triggers dynamic regulation before damage occurs; hiccup-mode SCP prevents thermal runaway during paper jam-induced shorts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62865ARGTR | Higher 3A rating, 2.5V–5.5V input, but 40μA IQ; uses voltage-mode PWM instead of COT; no integrated output discharge | Lacks fast discharge and ZCD; better suited for higher-current, lower-transient applications where soft-start timing is less critical | Select if >2A peak load or tighter output ripple (<10mV) is required; accept larger solution size and higher standby current |
| RT7295BGJ6F | 2A rating, 2.5V–5.5V input, 35μA IQ, 1.5MHz fSW; includes power-good flag but no OVP or hiccup-mode SCP | No output over-voltage protection or automatic discharge; requires external discharge FET and OVP circuit for safety-critical rails | Choose only when PG signal is mandatory and external protection can be added; avoid in SSD or medical sensor designs requiring self-contained fault handling |
Compared with TPS62865ARGTR and RT7295BGJ6F, MP2152DGQFU-P uniquely combines ultra-low IQ, integrated fast discharge, hiccup-mode SCP, and COT control in a 1.2mm×1.6mm footprint-making it optimal for space- and energy-constrained embedded systems where autonomous fault response is non-negotiable.
Availability
MP2152DGQFU-P is available at Aetrix Electronics and suitable for solid-state drives, portable instrumentation, and battery-powered wireless sensor nodes requiring stable component supply with guaranteed long-term manufacturability and RoHS-compliant sourcing.
Supply support for MP2152DGQFU-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 conversion, motor drivers, and LED lighting solutions.
The MP2152D product line targets ultra-compact, low-IQ buck converters for next-generation portable and storage devices-designed to replace discrete power stages while meeting stringent thermal, size, and reliability requirements in consumer and industrial edge electronics.
FAQ
What is the maximum recommended output current for MP2152DGQFU-P at 85°C ambient temperature?
At 85°C ambient with standard 2-layer JEDEC PCB layout (EVL2152D-QFU-00A), the MP2152DGQFU-P delivers 2A continuously while maintaining junction temperature ≤125°C. Derating begins above 85°C ambient due to θJA = 65°C/W; maximum output current drops to ~1.6A at 100°C ambient per Figure 8 in the datasheet.
Does MP2152DGQFU-P require an external bootstrap capacitor?
No. The MP2152DGQFU-P uses a charge-pump-based gate driver for its internal P-channel high-side MOSFET, eliminating the need for an external bootstrap capacitor or diode-simplifying layout and reducing BOM count compared to N-channel HS designs.
Can MP2152DGQFU-P operate in 100% duty cycle mode, and under what conditions?
Yes. The MP2152DGQFU-P supports true 100% duty cycle operation when VOUT ≥ 0.9 × VIN, enabling dropout-free regulation near input rail-critical for Li-ion battery applications where VIN may sag to 2.8V while maintaining 2.5V output.
How does the fast output discharge function activate, and what is its typical discharge time?
Fast output discharge activates automatically when the EN pin is pulled low or floats below 0.4V. The internal 13Ω NMOS switch connects VOUT to GND, discharging a 22μF output capacitor from 1.2V to <100mV in approximately 0.8ms-verified in Figure 10 of the datasheet under "Shutdown through EN" waveforms.
What is the minimum recommended inductor DCR, and why is it important?
The datasheet recommends inductor DCR <50mΩ to minimize conduction losses and maintain >85% efficiency at full 2A load. Lower DCR reduces I²R heating in the inductor and improves thermal margin-especially critical in sealed SSD enclosures where airflow is absent.
Is MP2152DGQFU-P compatible with MPS's MPL-AL4020 series inductors, and which value is optimal for 1.2V/2A operation?
Yes. The MPL-AL4020-1R0 (1.0μH, 10.1mΩ DCR) is explicitly validated in the Typical Application schematic and Efficiency vs. Load graphs. It provides optimal balance of size, saturation current (4.5A), and AC/DC loss for 1.2V/2A operation at 1.1MHz.
What happens during input over-voltage events exceeding 6.1V, and how does recovery occur?
When VIN exceeds 6.1V, absolute VIN OVP triggers: switching halts immediately, and the device remains latched off until VIN falls below 5.7V (400mV hysteresis). Recovery is automatic-no reset or EN toggle required-ensuring robustness against transient surges on shared 5V/12V system rails.
MP2152DGQFU-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 6-UFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- 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)
MP2152DGQFU-P FAQ
1.How can I place an order for MP2152DGQFU-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2152DGQFU-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 MP2152DGQFU-P reliable?
The price and inventory of MP2152DGQFU-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2152DGQFU-P is usually 5 days.
3.What payment methods are accepted for MP2152DGQFU-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152DGQFU-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2152DGQFU-P?
MP2152DGQFU-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2152DGQFU-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 MP2152DGQFU-P?
For technical support, including MP2152DGQFU-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152DGQFU-P requirements.
6.How does Aetrix verify that MP2152DGQFU-P is sourced from the original manufacturer or authorized distributors?
All MP2152DGQFU-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 MP2152DGQFU-P meets industry standards.
7.What is the process for return or replacement of MP2152DGQFU-P?
All MP2152DGQFU-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2152DGQFU-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 MP2152DGQFU-P part is unused and in its original packaging.
Return procedure for MP2152DGQFU-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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