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Monolithic Power Systems Inc. MP2153GQFU-P
- Part No.:
- MP2153GQFU-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2153GQFU-P.pdf
- Description:
- IC REG BUCK ADJ 3A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,900
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Product details
Overview
MP2153GQFU-P from Monolithic Power Systems is a synchronous step-down DC-DC converter IC with integrated 65mΩ high-side P-MOSFET and 35mΩ low-side N-MOSFET, delivering up to 3A continuous output current from 2.5V–5.5V input, regulating down to 0.6V with 1% FB accuracy and 25μA quiescent current - deployed in SSD power rails and portable instrument PMUs.
For engineers reviewing the MP2153GQFU-P datasheet, MP2153GQFU-P pinout, MP2153GQFU-P application, or MP2153GQFU-P equivalent, key selection criteria include ultra-low IQ for battery longevity, COT control for fast load transient response in compact systems, output discharge capability for safe power sequencing, and UTQFN-6 package thermal performance in space-constrained layouts.
Technical Context
The MP2153GQFU-P employs constant-on-time (COT) control with input voltage feed-forward, maintaining stable ~1.1MHz switching frequency across 2.5V–5.5V VIN and 0.6V–5.5V VOUT ranges while enabling sub-millisecond soft-start (0.5ms) and hiccup-mode short-circuit protection.
It integrates dual MOSFETs, a precision 600mV reference, output discharge FET, VOUT over-voltage protection (115% VFB trip), and EN-controlled power sequencing - all operating within -40°C to +125°C junction temperature range with thermal shutdown at 160°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, USB-powered, and 3.3V/5V rail inputs without external LDO pre-regulation. |
| Output Current | Up to 3A continuous - sustains full load in UTQFN-6 package with θJA = 65°C/W on 2-layer PCB. |
| Quiescent Current | 25μA - enables >1-year battery life in always-on sensor nodes with 200mAh coin cell. |
| Feedback Accuracy | ±1% at 25°C (±1.5% over -40°C to +125°C) - ensures tight regulation for core logic and memory supply rails. |
| Switching Frequency | 1.1MHz nominal - allows use of small 1μH inductors and 22μF ceramic output capacitors in <2mm² solution size. |
| Internal MOSFET RDS(ON) | 65mΩ (HS) / 35mΩ (LS) - minimizes conduction loss and thermal rise at 3A, enabling >90% efficiency at 1.2V/2A. |
| Output Discharge | Integrated 200Ω discharge path - actively drains VOUT to GND when EN = low, preventing floating bias in multi-rail sequencing. |
Pinout & Package
MP2153GQFU-P is housed in a 1.2mm × 1.6mm, 0.4mm pitch UTQFN-6 package with wettable flanks and exposed thermal pad. Pin 1 is marked by a dot or laser etch; top marking "FU" identifies the adjustable-output version.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power ground reference | Primary return path for high-frequency switch currents; must be connected directly to thermal pad and low-impedance ground plane. |
| SW (Pin 2) | Switch node | Drain of internal high-side P-MOSFET; connects to inductor; carries high di/dt ripple requiring short, wide trace routing. |
| VIN (Pin 3) | Input supply | Accepts 2.5V–5.5V unregulated input; requires local 10μF ceramic decoupling placed ≤2mm from pin. |
| EN (Pin 4) | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default disable; controls power-up sequencing and output discharge. |
| FB (Pin 5) | Feedback sense | Resistor-divider tap point; monitors VOUT via 600mV reference; 50–100nA input bias enables high-R divider (e.g., 200kΩ/200kΩ for 1.2V). |
| OUT (Pin 6) | Output sense & power rail | Direct connection to output capacitor; senses VOUT for regulation and OVP; not a PG pin - PG is absent in adjustable versions. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-On-Time (COT) control | Enables <10μs load transient recovery without external compensation components - critical for FPGA core voltage stability. |
| 25μA quiescent current | Reduces no-load power loss to <125μW at 5V input - extends shelf life and runtime in IoT endpoint sleep modes. |
| Output discharge function | 200Ω internal FET discharges VOUT to <100mV within 1ms after EN deactivation - prevents back-powering of upstream circuitry. |
| VOUT over-voltage protection | Triggers dynamic regulation at 115% VFB (e.g., 690mV for 0.6V setpoint), clamping VOUT via forced LS conduction - protects downstream 1.2V logic. |
| Hiccup-mode short-circuit protection | Enters 150μs off-cycle after current limit detection, limiting average power dissipation to <150mW during fault - avoids thermal runaway. |
Applications
| SSD Core Power | Portable Instrument PMU |
|---|---|
Use Scenario: Powering NAND flash controller and DRAM cache in M.2 SATA/NVMe solid-state drives with strict thermal envelope. IC Role / Device Role / Timing Role: Primary 1.2V/3A buck regulator supplying SoC core voltage; operates in CCM at full load, transitions to AAM at <100mA. Use Value: 25μA IQ extends idle battery life; 1.1MHz switching enables compact 1.0×1.6mm layout; output discharge prevents data corruption during hot-plug removal. |
Use Scenario: Multi-rail power management in handheld oscilloscopes and multimeters powered by 3.7V Li-ion cells. IC Role / Device Role / Timing Role: Generates 1.8V analog front-end supply and 3.3V digital rail via cascaded conversion; EN pin synchronized with MCU wake signal. Use Value: Ultra-small UTQFN-6 footprint saves board area; 2.5V min VIN supports operation down to 3.0V battery voltage; 1% FB accuracy maintains ADC reference stability. |
| Battery-Powered Sensor Hub | Multi-Function Printer Logic Rail |
Use Scenario: Always-on environmental sensor node with BLE radio, requiring microamp-level sleep current and fast wake-up response. IC Role / Device Role / Timing Role: Main 3.3V system rail converter; enters sleep mode below 1mA load, resuming regulation in <50μs upon load step. Use Value: 25μA IQ dominates system standby power; COT architecture delivers <20mV undershoot during 100mA→1A transients; EN pin enables MCU-controlled power gating. |
Use Scenario: Low-noise 1.2V supply for printer SoC and image processor in compact MFP designs with limited heatsinking. IC Role / Device Role / Timing Role: Secondary buck stage stepping down 5V USB or adapter input; handles burst printing loads up to 3A peak. Use Value: 65mΩ/35mΩ MOSFETs limit ΔT to <25°C at 3A; output discharge clears residual charge before firmware reset; 100% duty cycle supports dropout operation near end-of-battery. |
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 |
|---|---|---|---|
| TPS6286418RTER | Higher IQ (12μA), fixed 1.8V output only, no output discharge, 1.8MHz switching | Lacks adjustable VOUT and discharge - unsuitable for multi-voltage systems requiring sequencing or programmable rails | Select only if fixed 1.8V output and lowest possible IQ are primary requirements; verify thermal margin at 3A in 1.2mm×2.0mm QFN. |
| RT7295BGJ6F | Lower max current (2A), higher IQ (45μA), includes PG pin, same UTQFN-6 package | PG output enables system-level power-good monitoring; 2A rating limits use in 3A SSD or printer applications | Choose when power-good signaling is mandatory and load current stays ≤2A; confirm FB accuracy (±1.5%) meets system tolerance. |
Compared with TPS6286418RTER and RT7295BGJ6F, MP2153GQFU-P uniquely balances 3A capability, 25μA IQ, adjustable output, and integrated discharge in the smallest UTQFN-6 footprint - making it optimal for space- and battery-constrained multi-rail embedded systems.
Availability
MP2153GQFU-P is available at Aetrix Electronics and suitable for solid-state drive power management, portable instrumentation, and battery-powered sensor hubs requiring stable component supply with guaranteed long-term sourcing.
Supply support for MP2153GQFU-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP2153 belongs to MPS's ultra-compact, low-IQ buck converter product line, engineered specifically for space-constrained, battery-sensitive applications such as SSDs, wearables, and portable test equipment.
FAQ
What is the minimum recommended output capacitor for MP2153GQFU-P?
The datasheet specifies 22μF ceramic (X5R/X7R) as the typical output capacitance for 1.2V/3A operation. Using ≥22μF ensures <10mV output ripple under full load and maintains loop stability with the COT controller; lower values risk instability and excessive voltage deviation during transients.
Does MP2153GQFU-P support 100% duty cycle operation?
Yes - MP2153GQFU-P supports 100% duty cycle, allowing VOUT to track VIN down to VIN – (IOUT × RDSON_P). This enables dropout operation near end-of-battery in 3.7V Li-ion systems, sustaining 3.3V output even when VIN drops to 3.45V at 1A load.
How does the output discharge function behave during EN deactivation?
When EN is pulled low, the internal 200Ω discharge FET activates automatically, sinking current from VOUT to GND. For a 22μF output cap charged to 1.2V, VOUT discharges to <100mV in approximately 0.8ms - eliminating residual voltage that could interfere with system reset or cause latch-up.
Can MP2153GQFU-P be used with an inductor smaller than 1μH?
No - the datasheet specifies 1μH as the minimum inductance for stable CCM operation at 3A. Using <1μH increases peak inductor current beyond the 4A high-side current limit, triggering hiccup mode and causing regulation failure; 1.0–2.2μH is the validated range.
Is there a power-good (PG) signal available on MP2153GQFU-P?
No - PG is only present on fixed-output variants (e.g., MP2153GQFU-12). MP2153GQFU-P is the adjustable version and lacks the PG pin; FB monitoring must be implemented externally if power-good indication is required.
What thermal derating applies at 85°C ambient temperature?
At TA = 85°C, maximum continuous output current is derated to ~2.4A for UTQFN-6 per Figure 9 (Output Current Derating vs. Ambient Temperature), assuming θJA = 65°C/W on a 2-layer PCB. Forced airflow or enhanced copper pour can recover up to 0.3A additional headroom.
How does the COT control improve transient response compared to PWM?
COT eliminates the need for error amplifier compensation, reducing phase-margin sensitivity and enabling <10μs recovery from 1A load steps. Unlike fixed-frequency PWM, COT adjusts switching frequency dynamically - increasing fSW under light load for higher efficiency and maintaining bandwidth under heavy load.
MP2153GQFU-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:
- 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:
- 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-P FAQ
1.How can I place an order for MP2153GQFU-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GQFU-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-P reliable?
The price and inventory of MP2153GQFU-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-P is usually 5 days.
3.What payment methods are accepted for MP2153GQFU-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GQFU-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GQFU-P?
MP2153GQFU-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GQFU-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-P?
For technical support, including MP2153GQFU-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GQFU-P requirements.
6.How does Aetrix verify that MP2153GQFU-P is sourced from the original manufacturer or authorized distributors?
All MP2153GQFU-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-P meets industry standards.
7.What is the process for return or replacement of MP2153GQFU-P?
All MP2153GQFU-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GQFU-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-P part is unused and in its original packaging.
Return procedure for MP2153GQFU-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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