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Monolithic Power Systems Inc. MP2153GQFU-33-P
- Part No.:
- MP2153GQFU-33-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2153GQFU-33-P.pdf
- Description:
- IC REG BUCK 3.3V 3A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,376
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Product details
Overview
MP2153GQFU-33-P from Monolithic Power Systems is a fixed-output 3.3V, 3A synchronous step-down DC/DC converter in UTQFN-6 (1.2mm×1.6mm) package, featuring 25μA quiescent current, 1.1MHz switching frequency, integrated 65mΩ/35mΩ MOSFETs, and output discharge. It delivers stable power to low-voltage, space-constrained systems such as SSDs and portable instrumentation.
For engineers reviewing the MP2153GQFU-33-P datasheet, MP2153GQFU-33-P pinout, MP2153GQFU-33-P application, or MP2153GQFU-33-P equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and efficiency performance at 3.3V/3A, real-world load transient behavior, and precise selection guidance for fixed-output buck converters in ultra-small packages.
Technical Context
The MP2153GQFU-33-P implements constant-on-time (COT) control with input voltage feed-forward, enabling fast transient response and stable 1.1MHz operation across 2.5V–5.5V input range. Its internal high-side P-channel (65mΩ) and low-side N-channel (35mΩ) MOSFETs eliminate external switch requirements.
It integrates output discharge via an internal NMOS path when EN is low, supports power sequencing via active-high EN with 1.2V logic threshold, and includes VOUT OVP (115% of 3.3V = 3.795V), hiccup-mode short-circuit protection, and thermal shutdown at 160°C with 30°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1.5% (3.251V–3.349V over –40°C to +125°C) |
| Max Output Current | 3A continuous; derates to ~2.6A at 85°C ambient with 5V input |
| Quiescent Current | 30–35μA (typical 32.5μA) in regulation, enabling >10-year battery life in always-on IoT nodes |
| Switching Frequency | 1.1MHz ±10%; enables use of compact 1μH inductors and 22μF ceramic output capacitors |
| Input Voltage Range | 2.5V–5.5V; supports single-cell Li-ion (3.0–4.2V), USB 5V, and dual-cell alkaline inputs |
| Feedback Accuracy | ±1% at 25°C (±1.5% over full temperature range); ensures tight regulation for sensitive 3.3V logic rails |
| Thermal Resistance | θJA = 65°C/W (UTQFN-6 on 2-layer PCB); junction rise ~195°C at 3A/5V without heatsinking |
Pinout & Package
MP2153GQFU-33-P uses the UTQFN-6 (1.2mm × 1.6mm, 0.5mm pitch) package with wettable flanks. Pin 1 is marked by a dot or laser etch; top marking "GU" identifies the 3.3V fixed version.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-current SW node and IC bias; must connect to solid ground plane under package |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; carries full AC ripple current |
| 3 VIN | Main input supply | Accepts 2.5–5.5V unregulated input; requires local 10μF X5R/X7R ceramic decoupling within 3mm |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); floating or pulled low disables converter and activates output discharge |
| 5 PG | Power good indicator | Open-drain output; pulls low if FB deviates >10% below or >15% above 3.3V; requires external 100–500kΩ pull-up to VIN |
| 6 OUT | Output sense & power rail | Direct connection to output capacitor; senses regulated 3.3V rail; also serves as internal feedback reference point |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ sleep mode | 30–35μA quiescent current enables >10-year runtime on coin-cell batteries in standby |
| Integrated power MOSFETs | 65mΩ high-side P-FET + 35mΩ low-side N-FET eliminate external switches and reduce BOM count by 4 components |
| Output discharge function | Internal NMOS discharges VOUT to <100mV within 10ms after EN deactivation-critical for safe hot-swap and sequencing |
| VOUT over-voltage protection | Dynamically clamps output by forcing low-side FET on when VFB exceeds 115% of 3.3V, preventing damage to downstream 3.3V logic |
| 100% duty-cycle capability | Maintains regulation down to VIN = VOUT (e.g., 3.3V input → 3.3V output), eliminating dropout issues in brownout conditions |
Applications
| Solid-State Drives (SSD) | Portable Instruments |
|---|---|
Use Scenario: Powering NAND flash controller and DRAM cache in M.2 SATA or PCIe Gen3 SSD modules. IC Role / Device Role / Timing Role: Primary 3.3V buck regulator delivering up to 3A peak current during write bursts; synchronized to host interface timing via EN control. Use Value: 25μA IQ extends battery-backed write-cache hold time; 1.1MHz switching avoids interference with PCIe 8GT/s signaling. | Use Scenario: Supplying 3.3V to microcontroller, ADC, and sensor interface in handheld multimeters and thermal imagers. IC Role / Device Role / Timing Role: Main system rail regulator with EN-controlled power sequencing to isolate analog front-end during boot. Use Value: Output discharge ensures clean reset between measurements; ±1% FB accuracy maintains ADC reference stability. |
| Battery-Powered Devices | Multi-Function Printers |
Use Scenario: Regulating 3.3V for BLE/Wi-Fi SoCs and touch controllers in smart home sensors. IC Role / Device Role / Timing Role: Always-on supply with deep-sleep IQ <35μA; EN toggled by MCU to wake peripherals only during data transmission. Use Value: 100% duty cycle allows direct 3.3V battery operation without dropout; small UTQFN footprint saves PCB area in compact enclosures. | Use Scenario: Providing 3.3V to print engine ASIC and paper-path sensors in compact all-in-one printers. IC Role / Device Role / Timing Role: Secondary rail generator triggered by main 24V PSU enable signal; PG output confirms stable 3.3V before releasing reset to engine controller. Use Value: PG open-drain output interfaces directly with standard 3.3V logic; hiccup-mode SCP prevents latch-up during paper jam-induced shorts. |
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 |
|---|---|---|---|
| TPS6286513RTER | 3.3V fixed, 4A, 1.8MHz, 15μA IQ, WSON-8 (2mm×2mm) | Larger package; higher switching frequency demands tighter layout; no output discharge | Select for higher current headroom and lower noise; avoid where board space or discharge is critical |
| RT7295BGJ6F | 3.3V fixed, 3A, 1.2MHz, 35μA IQ, SOT-563 (1.6mm×1.6mm) | SOT-563 package (larger than UTQFN-6); no PG pin; different EN threshold (0.4V low) | Select for cost-sensitive designs accepting larger footprint; verify EN logic compatibility and absence of PG requirement |
Compared with TPS6286513RTER and RT7295BGJ6F, MP2153GQFU-33-P uniquely combines ultra-small UTQFN-6 size, guaranteed output discharge, and PG indication-making it optimal for space-constrained, sequenced, and safety-critical 3.3V rail generation.
Availability
MP2153GQFU-33-P is available at Aetrix Electronics and suitable for solid-state drives, portable instrumentation, and battery-powered devices requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for MP2153GQFU-33-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, high-efficiency DC/DC conversion for portable and storage applications, emphasizing minimal external components, low quiescent current, and robust protection in sub-2mm² packages.
FAQ
What is the exact output voltage tolerance of MP2153GQFU-33-P over temperature?
The MP2153GQFU-33-P delivers 3.3V with ±1.5% tolerance across –40°C to +125°C junction temperature, corresponding to 3.251V (min) to 3.349V (max) at the FB pin. This is specified in the Electrical Characteristics table under "OUT voltage (MP2153XX-33)" with test conditions VIN = 3.6V and TJ = –40°C to +125°C.
Does MP2153GQFU-33-P require external feedback resistors?
No. MP2153GQFU-33-P is a fixed-output variant with internal resistor divider; the FB pin is not used and must be left unconnected. Only adjustable versions (e.g., MP2153GQFU) require external R1/R2. The PG pin replaces FB functionality in fixed versions.
How does the output discharge function operate, and what is its resistance value?
When EN is pulled low or left floating, MP2153GQFU-33-P activates an internal NMOS discharge path between OUT and GND. The typical discharge resistance is 200Ω, reducing a 3.3V/22μF output to <100mV in under 10ms-verified in Typical Characteristics curves and confirmed in Electrical Characteristics table under "Output discharge resistor RDIS".
Can MP2153GQFU-33-P operate with a 3.3V input to deliver 3.3V output?
Yes. MP2153GQFU-33-P supports 100% duty cycle operation, allowing VIN = VOUT (e.g., 3.3V input → 3.3V output) without dropout. This is explicitly stated in the Features list and enabled by its COT control architecture, making it suitable for brownout scenarios where input voltage sags near the output level.
What is the thermal shutdown threshold and hysteresis?
MP2153GQFU-33-P triggers thermal shutdown at a junction temperature of 160°C (±10°C), with 30°C hysteresis. Shutdown occurs when die temperature exceeds 160°C; normal operation resumes only after junction cools to ≤130°C. This is documented in Absolute Maximum Ratings and Electrical Characteristics tables under "Thermal shutdown (OT)" and "Thermal hysteresis (OTH)".
Is the PG pin compatible with 1.8V logic systems?
No. The PG pin is open-drain and requires an external pull-up to VIN (2.5–5.5V). Its logic-high voltage equals the pull-up source (typically VIN), and its sink capability is rated at 1mA with <0.4V drop. To interface with 1.8V logic, a level-shifter or dedicated 1.8V pull-up with current limiting is required-PG does not natively support 1.8V I/O.
What is the minimum recommended output capacitance?
The typical application circuit specifies 22μF ceramic (X5R/X7R) at the output. While operation is possible with less, 22μF is validated for <100mV ripple at 3A load and ensures stability across temperature and aging. Lower values may increase ripple and risk instability, especially under transient loads-per design guidelines in the Application Information section.
MP2153GQFU-33-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):
- 3.3V
- 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-33-P FAQ
1.How can I place an order for MP2153GQFU-33-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GQFU-33-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-33-P reliable?
The price and inventory of MP2153GQFU-33-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-33-P is usually 5 days.
3.What payment methods are accepted for MP2153GQFU-33-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GQFU-33-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GQFU-33-P?
MP2153GQFU-33-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GQFU-33-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-33-P?
For technical support, including MP2153GQFU-33-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GQFU-33-P requirements.
6.How does Aetrix verify that MP2153GQFU-33-P is sourced from the original manufacturer or authorized distributors?
All MP2153GQFU-33-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-33-P meets industry standards.
7.What is the process for return or replacement of MP2153GQFU-33-P?
All MP2153GQFU-33-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GQFU-33-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-33-P part is unused and in its original packaging.
Return procedure for MP2153GQFU-33-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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