My Inquiry
My Account
Monolithic Power Systems Inc. MP2153GQFU-33-Z
- Part No.:
- MP2153GQFU-33-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2153GQFU-33-Z.pdf
- Description:
- IC REG BUCK 3.3V 3A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,074
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP2153GQFU-33-Z 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, and integrated 65mΩ/35mΩ MOSFETs. It delivers stable power to low-voltage subsystems in SSDs and portable instrumentation under 2.5V–5.5V input.
For engineers reviewing the MP2153GQFU-33-Z datasheet, MP2153GQFU-33-Z pinout, MP2153GQFU-33-Z application, or MP2153GQFU-33-Z equivalent, key selection criteria include fixed 3.3V output accuracy (±1%), output discharge capability, power-good signaling, thermal shutdown at 160°C, and compatibility with ultra-compact PCB layouts requiring <2.0mm² footprint.
Technical Context
The MP2153GQFU-33-Z employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across its 2.5V–5.5V input range. Its internal high-side P-channel (65mΩ) and low-side N-channel (35mΩ) MOSFETs enable up to 3A continuous output with minimal external components.
It integrates output discharge via an internal MOSFET, provides open-drain power-good (PG) indication referenced to VIN, and implements hiccup-mode short-circuit protection with 4A peak high-side current limit and -1.5A valley low-side current sensing for robust fault recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% (3251–3349mV over -40°C to +125°C), enabling direct replacement of LDOs in noise-sensitive digital rails. |
| Max Output Current | 3A continuous, supported by thermal resistance θJA = 65°C/W (UTQFN), allowing full load operation up to +85°C ambient with minimal heatsinking. |
| Quiescent Current | 30–35μA (typical), sustaining >100-hour battery life in always-on portable devices powered from single-cell Li-ion. |
| Switching Frequency | 1.1MHz nominal, enabling use of compact 1μH inductors and reducing EMI filter size without compromising transient response. |
| Input Voltage Range | 2.5V to 5.5V, supporting direct regulation from USB VBUS, single-cell Li-ion (2.7–4.2V), or boosted 3.3V rails. |
| Power Good Threshold | PG asserts when VOUT reaches 90% (2.97V) and deasserts at 85% (2.805V), providing clean sequencing signal for FPGA or microcontroller reset logic. |
| Output Discharge Resistance | 200Ω internal path, discharging 22μF output cap from 3.3V to <0.5V in <15ms-critical for safe hot-swap and system-level power-down compliance. |
Pinout & Package
MP2153GQFU-33-Z uses the UTQFN-6 (1.2mm × 1.6mm, 0.4mm pitch) package with wettable flank leads for automated optical inspection. Pin 1 is marked by a dot or laser etch near the corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Power ground reference | Primary return path for high-frequency switch node current; must be connected to solid thermal pad for thermal performance and EMI control. |
| SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; requires tight layout to minimize ringing and EMI. |
| VIN | Input supply | Unregulated 2.5–5.5V source; requires local 10μF ceramic decoupling placed within 2mm of this pin. |
| EN | Enable control | Active-high logic input (1.2V threshold); floating or grounded disables device and activates output discharge. |
| PG | Power good indicator | Open-drain output requiring external 100–500kΩ pull-up to VIN; sinks ≤0.4V at 1mA for reliable logic-level detection. |
| OUT | Output sense & power rail | Direct connection to output capacitor; senses regulated 3.3V rail and supplies internal feedback reference for PG generation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 30–35μA enables >1-year shelf life in battery-backed IoT sensors without periodic wake-up drain. |
| Integrated power MOSFETs | 65mΩ high-side + 35mΩ low-side switches eliminate external FETs and gate drivers, reducing BOM count by ≥4 components. |
| Output discharge function | Internal 200Ω discharge path ensures rapid VOUT collapse during shutdown-required for PCIe-compliant hot-plug and safety-critical power sequencing. |
| Fixed 3.3V output with PG | No external resistor divider needed; PG pin provides deterministic power-rail monitoring for SoC boot validation and firmware-controlled power management. |
| Hiccup-mode short-circuit protection | Auto-retry soft-start after fault clears eliminates need for external reset circuitry in multi-rail systems with shared input sources. |
Applications
| Solid-State Drives (SSD) | Portable Instruments |
|---|---|
Use Scenario: Regulating 3.3V VCC for NAND flash controller and DRAM cache in M.2 NVMe SSD modules. IC Role / Device Role / Timing Role: Primary point-of-load (POL) regulator delivering 3A peak current during burst writes with <100μs transient recovery. Use Value: 25μA IQ extends battery-backed write-cache retention time; 1.1MHz switching avoids interference with PCIe Gen4 data lanes. | Use Scenario: Powering mixed-signal ADC front-end, microcontroller core, and LCD backlight driver in handheld multimeters. IC Role / Device Role / Timing Role: Single-chip 3.3V supply replacing discrete buck + LDO cascade, simplifying layout and reducing board area by 35%. Use Value: Output discharge prevents residual charge on VCC rail from corrupting ADC calibration data during power cycling. |
| Battery-Powered Devices | Multi-Function Printers |
Use Scenario: Supplying 3.3V to BLE SoC and sensor hub in wireless asset trackers operating on CR2032 coin cells. IC Role / Device Role / Timing Role: Always-on regulator maintaining RTC and wake-up logic while drawing <35μA in sleep mode. Use Value: 2.5V minimum input allows operation down to end-of-life battery voltage (~2.6V), extending usable battery life by 22%. | Use Scenario: Providing 3.3V bias for paper sensor ICs, stepper motor drivers, and USB interface PHY in compact all-in-one printers. IC Role / Device Role / Timing Role: Secondary POL regulator sharing 5V input rail with main logic supply; sequenced via EN pin during warm-up. Use Value: PG signal synchronizes firmware initialization with stable 3.3V rail, eliminating boot failures caused by marginal VCC rise time. |
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 |
|---|---|---|---|
| TI TPS6286413RTER | 3.3V fixed, 4A, 1.8MHz, 15μA IQ, WSON-6 (1.5×1.5mm) | Higher switching frequency enables smaller inductors but increases EMI sensitivity in noisy printer environments. | Select when higher current headroom and lower IQ are critical; verify layout filtering for 1.8MHz harmonics near USB 2.0 lines. |
| Analog Devices ADP5302AUJZ-3.3-R7 | 3.3V fixed, 300mA, 3MHz, 2.5μA IQ, TSOT-23-6 | Lower current rating and no PG output-unsuitable for SSD or printer sensor rails requiring 3A and sequencing. | Only viable for ultra-low-power peripherals (e.g., Bluetooth LE sensors); not a functional substitute for MP2153GQFU-33-Z's 3A capability. |
Compared with TPS6286413RTER and ADP5302AUJZ-3.3-R7, MP2153GQFU-33-Z uniquely balances 3A output, 35μA IQ, PG signaling, and sub-2mm² UTQFN packaging-making it optimal for space-constrained, medium-current applications where reliability and sequencing integrity outweigh raw efficiency or ultra-low IQ.
Availability
MP2153GQFU-33-Z is available at Aetrix Electronics and suitable for solid-state drives, portable instrumentation, battery-powered edge sensors, and multi-function printers requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MP2153GQFU-33-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-efficiency, high-density power management ICs for consumer, industrial, and automotive markets.
The MP2153 product line targets ultra-compact, low-IQ DC/DC conversion in portable and storage applications-designed specifically to replace linear regulators and legacy buck controllers in space- and battery-life-constrained designs.
FAQ
What is the recommended input capacitor for MP2153GQFU-33-Z?
A 10μF X5R/X7R ceramic capacitor placed within 2mm of the VIN and GND pins is required. This value ensures stable COT control loop operation and suppresses high-frequency input ripple generated by the 1.1MHz switching action. Use 0603 or 0805 case size with ≤10mΩ ESL for optimal performance.
Does MP2153GQFU-33-Z require an external feedback resistor divider?
No. MP2153GQFU-33-Z is a fixed-output variant with internal feedback network set to 3.3V. The FB pin is not connected externally-unlike adjustable versions (e.g., MP2153GQFU). Using external resistors will disrupt regulation and void output accuracy guarantees.
How does the output discharge function operate during shutdown?
When EN is pulled low or left floating, the internal discharge MOSFET activates automatically, connecting OUT to GND through a 200Ω path. This discharges a 22μF output capacitor from 3.3V to <0.5V in under 15ms, meeting IEC 62368-1 safe discharge requirements for user-accessible terminals.
Can MP2153GQFU-33-Z be used with a 1.5μH inductor?
Yes, but with trade-offs. The datasheet specifies 1μH for optimal efficiency and transient response. A 1.5μH inductor reduces peak inductor current and RMS losses but increases output voltage ripple by ~25% and slows load-step recovery by ~30%, which may affect SSD controller timing margins.
What is the maximum allowable PCB temperature rise at 3A output?
At 3A continuous load and TA = +85°C, junction temperature reaches 125°C (TJ = TA + PD × θJA). With 65°C/W thermal resistance and ~0.3W dissipation, case temperature rise is ≤20°C above ambient-well within the 150°C absolute max junction rating and compatible with standard FR-4 PCBs using 2oz copper and thermal vias under the exposed pad.
Is the PG pin compatible with 1.8V logic systems?
No. PG is an open-drain output referenced to VIN (2.5–5.5V), requiring an external pull-up to VIN-not to 1.8V. Connecting the pull-up to 1.8V violates the absolute maximum rating for PG pin voltage and risks latch-up. For 1.8V logic interfacing, use a level-shifter or dedicated voltage detector.
Does MP2153GQFU-33-Z support forced PWM mode?
No. MP2153GQFU-33-Z operates exclusively in COT mode with automatic transition between continuous conduction mode (CCM), discontinuous conduction mode (DCM), and advanced asynchronous modulation (AAM) at light loads. There is no pin or register to force fixed-frequency PWM operation.
MP2153GQFU-33-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):
- 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-Z FAQ
1.How can I place an order for MP2153GQFU-33-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GQFU-33-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 MP2153GQFU-33-Z reliable?
The price and inventory of MP2153GQFU-33-Z 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-Z is usually 5 days.
3.What payment methods are accepted for MP2153GQFU-33-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GQFU-33-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GQFU-33-Z?
MP2153GQFU-33-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GQFU-33-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 MP2153GQFU-33-Z?
For technical support, including MP2153GQFU-33-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GQFU-33-Z requirements.
6.How does Aetrix verify that MP2153GQFU-33-Z is sourced from the original manufacturer or authorized distributors?
All MP2153GQFU-33-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 MP2153GQFU-33-Z meets industry standards.
7.What is the process for return or replacement of MP2153GQFU-33-Z?
All MP2153GQFU-33-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GQFU-33-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 MP2153GQFU-33-Z part is unused and in its original packaging.
Return procedure for MP2153GQFU-33-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP2153GQFU-33-Z Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
