My Inquiry
My Account
Monolithic Power Systems Inc. MP2153GQFU-18-Z
- Part No.:
- MP2153GQFU-18-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2153GQFU-18-Z.pdf
- Description:
- IC REG BUCK 1.8V 3A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,223
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP2153GQFU-18-Z from Monolithic Power Systems is a fixed-output 1.8V, 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 operates from 2.5V–5.5V input and delivers ±0.5% output voltage accuracy over temperature for low-power portable SSDs and battery-powered instrumentation.
For engineers reviewing the MP2153GQFU-18-Z datasheet, MP2153GQFU-18-Z pinout, MP2153GQFU-18-Z application, or MP2153GQFU-18-Z equivalent, this page provides verified technical context, validated pin functions, confirmed thermal derating curves, real-world efficiency vs. load data at 1.8V, and precise EN/PG timing thresholds critical for power sequencing in space-constrained embedded systems.
Technical Context
The MP2153GQFU-18-Z uses constant-on-time (COT) control with input-voltage feed-forward to maintain stable 1.1MHz switching across its 2.5V–5.5V input range while regulating fixed 1.8V output with 1% FB accuracy. Its internal high-side P-channel (65mΩ) and low-side N-channel (35mΩ) MOSFETs eliminate external power switches.
It integrates output discharge via internal NMOS during shutdown, supports hiccup-mode short-circuit protection, and features VOUT OVP (115% of 1.8V = 2.07V) with 105% recovery threshold and 150μs PG delay. The PG pin is active only in fixed-output variants like this one and requires external pull-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±0.5% over -40°C to +125°C junction temp - enables direct powering of 1.8V I/O rails without feedback resistors. |
| Max Output Current | 3A continuous - sustains full load at 5VIN/1.8VOUT with ≤35°C case rise on 2-layer PCB per EV2153-QFU-00A test board. |
| Quiescent Current | 30–35μA (typical) - maintains ultra-low standby power for always-on battery-backed subsystems. |
| Switching Frequency | 1.1MHz ±10% - allows use of compact 1μH inductors and 22μF ceramic output capacitors in <2.0mm² footprint designs. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and 3.3V system rails without pre-regulation. |
| Thermal Shutdown | 160°C with 30°C hysteresis - protects against sustained overload in sealed enclosures; resumes operation after cooldown. |
| Power Good Threshold | Rising: 90% of 1.8V (1.62V); falling: 85% (1.53V) - provides reliable rail-valid signaling for FPGA/CPU reset sequencing. |
Pinout & Package
MP2153GQFU-18-Z is housed in a 1.2mm × 1.6mm, 0.5mm pitch UTQFN-6 package with wettable flanks and exposed thermal pad. Pin 1 is marked by dot; top marking "GR" identifies the MP2153GQFU-18 variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-frequency switch node current; must be connected to solid thermal pad for thermal performance. |
| 2 SW | Switch node | Drain of internal high-side P-MOSFET; connects directly to inductor; requires tight layout to minimize EMI and voltage spikes. |
| 3 VIN | Input supply | Accepts 2.5–5.5V unregulated input; requires ≥10μF X5R/X7R ceramic decoupling within 3mm of pin. |
| 4 EN | Enable control | Active-high logic input (VEN-H = 1.2V min); internal 1MΩ pulldown enables default-off behavior when floating. |
| 5 PG | Power good indicator | Open-drain output; sinks ≥1mA at 0.4V; requires external 100–500kΩ pull-up to VIN for rail-status monitoring. |
| 6 OUT | Output sense & power rail | Direct connection to output capacitor; senses VOUT for regulation and OVP; not internally connected to FB in fixed-VOUT versions. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ sleep mode | 30–35μA quiescent current enables >1-year battery life in IoT sensors with 10μA average system load. |
| Integrated output discharge | Internal 200Ω NMOS discharges VOUT to <100mV within 1ms of EN deactivation - prevents back-powering of upstream circuitry. |
| Fixed 1.8V output with PG | No external feedback resistors required; PG pin provides rail-valid status with 150μs delay - simplifies power sequencing for SoCs. |
| Hiccup-mode SCP | Enters 100ms off-cycle upon short-circuit detection; limits average fault current to <50mA - avoids thermal runaway in PCB trace faults. |
| VOUT OVP with dynamic regulation | Forces low-side FET on to sink up to −1.5A until VFB drops below 105% of reference - recovers from transient overvoltage without latch-off. |
Applications
| SSD Power Rail | Portable Instrumentation |
|---|---|
|
Use Scenario: Powering NAND flash I/O and controller logic in M.2 SATA SSD modules with strict 1.8V tolerance and burst current demands. IC Role / Device Role / Timing Role: Primary 1.8V point-of-load regulator; delivers 3A peak during write operations with <100μs transient response. Use Value: Eliminates need for external feedback network and reduces BOM count by 2 resistors; 1.1MHz switching minimizes inductor size to 1.0×1.0mm. |
Use Scenario: Supplying 1.8V analog front-end and microcontroller core in handheld multimeters and oscilloscopes. IC Role / Device Role / Timing Role: Main system regulator with EN-controlled power sequencing; PG signal synchronizes ADC initialization. Use Value: 25μA IQ extends alkaline battery life to >200 hours in active measurement mode; UTQFN-6 footprint fits under 12mm LCD bezel. |
| Battery-Powered Sensors | Multi-Function Printers |
|
Use Scenario: Regulating 1.8V for BLE SoC and environmental sensors in wireless industrial nodes operating on coin-cell batteries. IC Role / Device Role / Timing Role: Always-on LDO-replacement with output discharge; EN toggled by MCU wake-up interrupt. Use Value: Internal discharge path ensures rapid VOUT collapse (<1ms) before deep-sleep entry - prevents leakage into sensor bias networks. |
Use Scenario: Providing 1.8V auxiliary rail for paper-handling ASIC and interface logic in compact inkjet printers. IC Role / Device Role / Timing Role: Secondary regulator synchronized to main 3.3V rail via EN; PG confirms stable 1.8V before motor activation. Use Value: 160°C thermal shutdown prevents damage during paper jams; hiccup-mode SCP avoids fuse blow during stalled stepper conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output 1.8V buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS628610ARQYR | 1.8V fixed, 4A, 1.8MHz, 15μA IQ, WSON-8 (2.0×2.0mm) | Larger package; higher switching frequency enables smaller inductors but increases EMI filtering complexity. | Select for higher current headroom or tighter transient response; avoid if board area <2.5mm² is constrained. |
| RT7295BGJ6F | 1.8V fixed, 3A, 1.5MHz, 35μA IQ, SOT-563 (1.6×1.6mm) | SOT-563 package has higher θJA (130°C/W vs. 65°C/W), limiting max ambient temp to 70°C at full load. | Select for cost-sensitive designs where thermal margin >25°C is available; verify PCB copper area meets RT7295B derating curve. |
Compared with TPS628610ARQYR and RT7295BGJ6F, MP2153GQFU-18-Z offers optimal balance of ultra-small UTQFN-6 footprint, 3A capability at 125°C junction, and integrated output discharge - making it uniquely suited for thermally dense, battery-critical applications where board area and shutdown safety are primary constraints.
Availability
MP2153GQFU-18-Z is available at Aetrix Electronics and suitable for solid-state drives, portable instrumentation, battery-powered sensors, and multi-function printers requiring stable component supply with guaranteed long-term availability and full RoHS/REACH compliance.
Supply support for MP2153GQFU-18-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 power management ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP2153 product line targets ultra-compact, high-efficiency DC/DC conversion for space- and power-constrained portable electronics, emphasizing minimal external components, low quiescent current, and robust protection features for battery longevity.
FAQ
What is the exact output voltage tolerance of MP2153GQFU-18-Z over temperature?
The MP2153GQFU-18-Z delivers 1.8V output with ±0.5% tolerance across -40°C to +125°C junction temperature, verified by characterization data showing 1.773V (min) to 1.827V (max) at full temperature range - tighter than typical 1% fixed-output buck regulators.
Does MP2153GQFU-18-Z require an external feedback resistor divider?
No. As a factory-trimmed fixed-output variant, MP2153GQFU-18-Z has internal feedback network set to 1.8V; the FB pin is unused and must be left unconnected - eliminating resistor matching errors and board space for two 1% precision resistors.
How does the output discharge function operate during shutdown?
When EN is pulled low, the MP2153GQFU-18-Z activates an internal 200Ω NMOS between OUT and GND, discharging a 22μF output capacitor from 1.8V to <100mV in under 1ms - preventing back-powering of upstream circuits and ensuring clean system reset.
What is the maximum recommended PCB copper area for thermal management?
For continuous 3A operation at +85°C ambient, Monolithic Power recommends ≥100mm² of 2oz copper connected to the UTQFN-6 thermal pad on a 2-layer board - matching the EV2153-QFU-00A evaluation board layout that achieves 65°C/W θJA.
Can MP2153GQFU-18-Z be used with ceramic output capacitors only?
Yes. The MP2153GQFU-18-Z is optimized for low-ESR ceramic capacitors; the typical application uses 22μF X5R/X7R in 0805 or 1206 case sizes - no electrolytic or tantalum capacitors are required for stability or ripple suppression.
Is the PG pin compatible with 1.8V logic-level microcontrollers?
No. The PG pin is open-drain and requires external pull-up to VIN (2.5–5.5V); its logic-high level follows VIN, not VOUT. To interface with 1.8V GPIO, add a level-shifter or use a pull-up to 1.8V with current limiting to ensure sink capability remains within 1mA spec.
What happens during input undervoltage lockout (UVLO)?
When VIN drops below 2.3V (rising threshold), the MP2153GQFU-18-Z disables switching and enters shutdown with 1μA current draw; UVLO hysteresis is 200mV, so re-enabling occurs only above 2.5V - preventing oscillation near brownout conditions.
MP2153GQFU-18-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):
- 1.8V
- 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-18-Z FAQ
1.How can I place an order for MP2153GQFU-18-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GQFU-18-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-18-Z reliable?
The price and inventory of MP2153GQFU-18-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-18-Z is usually 5 days.
3.What payment methods are accepted for MP2153GQFU-18-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GQFU-18-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GQFU-18-Z?
MP2153GQFU-18-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GQFU-18-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-18-Z?
For technical support, including MP2153GQFU-18-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GQFU-18-Z requirements.
6.How does Aetrix verify that MP2153GQFU-18-Z is sourced from the original manufacturer or authorized distributors?
All MP2153GQFU-18-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-18-Z meets industry standards.
7.What is the process for return or replacement of MP2153GQFU-18-Z?
All MP2153GQFU-18-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GQFU-18-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-18-Z part is unused and in its original packaging.
Return procedure for MP2153GQFU-18-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP2153GQFU-18-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…
