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Monolithic Power Systems Inc. MP2153GTF-12-Z
- Part No.:
- MP2153GTF-12-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2153GTF-12-Z.pdf
- Description:
- IC REG BUCK 1.2V 3A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:4,523
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Product details
Overview
MP2153GTF-12-Z from Monolithic Power Systems is a fixed-output, 1.2V, 3A synchronous step-down DC/DC converter in SOT563 package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 65mΩ/35mΩ MOSFETs. It delivers precise regulation (±1% FB accuracy) with output discharge, OVP, and hiccup-mode short-circuit protection for low-power portable systems.
For engineers reviewing the MP2153GTF-12-Z datasheet, MP2153GTF-12-Z pinout, MP2153GTF-12-Z application, or MP2153GTF-12-Z equivalent, key selection criteria include ultra-low IQ for battery longevity, fixed 1.2V output with ±1.5% total accuracy over temperature, EN-controlled sequencing, thermal shutdown at 160°C, and compatibility with 1μH inductors and 22μF ceramic output capacitors.
Technical Context
The MP2153GTF-12-Z employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across 2.5V–5.5V input range, enabling fast transient response without external compensation. Its internal power stage integrates complementary P-channel (65mΩ) and N-channel (35mΩ) MOSFETs optimized for high efficiency at light loads.
Sleep mode reduces IQ to 25μA by disabling non-critical blocks while retaining error amplifier and PWM comparator operation; output discharge activates automatically during disable via internal 200Ω discharge path. Fixed 1.2V output eliminates external feedback resistors, and VOUT OVP triggers dynamic low-side discharge at 115% of nominal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±1.5% over -40°C to +125°C - ensures stable core rail for low-voltage SoCs and FPGAs. |
| Max Output Current | 3A continuous - supports SSD controllers and multi-core microcontrollers without external current boosting. |
| Quiescent Current | 25μA at VIN=5V - extends battery life in always-on portable instrumentation and wearables. |
| Switching Frequency | 1.1MHz - enables compact 1μH inductor and 22μF ceramic capacitor designs, minimizing board area. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and dual-cell alkaline inputs. |
| Internal MOSFET RDS(ON) | 65mΩ (HS) / 35mΩ (LS) - reduces conduction loss and thermal rise under full 3A load in SOT563 package. |
| OVP Threshold | 115% of 1.2V = 1.38V - initiates active low-side discharge to protect downstream 1.2V logic rails. |
| Thermal Shutdown | 160°C with 30°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
SOT563 (1.6mm × 1.6mm) thermally enhanced 6-pin package with exposed pad; footprint-compatible with UTQFN-6 but distinct pin mapping. Designed for high-density portable PCB layouts with minimal thermal vias required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-current SW node and IC bias; must connect directly to thermal pad and low-impedance ground plane. |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; carries high di/dt ripple requiring tight layout and short trace. |
| 3 VIN | Input supply | Unregulated 2.5–5.5V input; requires local 10μF ceramic decoupling placed within 2mm of pin to suppress switching noise. |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown allows floating-disable; controls power sequencing and automatic output discharge. |
| 5 FB | Feedback (N/C for fixed version) | No-connect on MP2153GTF-12-Z; internally tied to 1.2V reference; unused pin must remain unconnected per datasheet. |
| 6 OUT | Output sense | Direct connection to regulated 1.2V rail; senses output voltage for internal regulation loop and OVP monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 25μA enables >1-year battery life in coin-cell-powered IoT sensors operating at μA average load. |
| Integrated output discharge | 200Ω internal MOSFET discharges output capacitor when EN=low, preventing residual voltage from interfering with system reset timing. |
| 100% duty-cycle capability | Supports dropout operation down to VIN = VOUT + ~100mV, critical for Li-ion end-of-discharge scenarios in portable devices. |
| Hiccup-mode short-circuit protection | Current-limited recovery cycle limits average fault power to <100mW, avoiding thermal runaway during sustained shorts. |
| 1.1MHz COT control | Eliminates need for external compensation network and provides sub-10μs load transient response for CPU core rails. |
Applications
| Solid-State Drives (SSD) | Portable Medical Instruments |
|---|---|
Use Scenario: Powering NAND flash controller and DRAM cache in M.2 SATA SSD modules with space-constrained PCBs. IC Role / Device Role / Timing Role: Primary 1.2V core regulator delivering up to 3A peak current during burst writes; synchronized to host interface clock for EMI control. Use Value: 1.1MHz switching avoids interference with 6Gbps SATA PHY; 25μA IQ minimizes standby drain during TRIM operations. |
Use Scenario: Supplying 1.2V to ultra-low-power ARM Cortex-M4 microcontroller and analog front-end in handheld glucose meters. IC Role / Device Role / Timing Role: Always-on system rail with EN controlled by MCU wake-up interrupt; soft-start prevents sensor offset shift during power-up. Use Value: Output discharge ensures clean reset between measurements; 1.2V fixed output eliminates resistor tolerance errors in precision ADC reference paths. |
| Battery-Powered Wireless Sensors | Multi-Function Printer Logic Rails |
Use Scenario: Regulating 1.2V for BLE 5.0 SoC and environmental sensors in sealed industrial asset tags. IC Role / Device Role / Timing Role: Primary power converter enabled only during sensor readout and BLE transmission bursts; enters deep sleep between events. Use Value: 25μA IQ extends 10-year CR2032 battery life; hiccup-mode SCP prevents fire hazard if LiSOCl₂ primary cell develops internal short. |
Use Scenario: Generating 1.2V for ASIC-based print engine controller and memory interface in compact desktop printers. IC Role / Device Role / Timing Role: Secondary rail derived from 5V USB or wall adapter; sequenced after 3.3V I/O rail using EN pin. Use Value: 100% duty cycle maintains regulation as input drops during AC brownouts; SOT563 footprint saves space vs. larger SO-8 alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS6286512RQYR | 1.8V minimum input, 1.2V fixed, 4A output, 1.8MHz, 75nA IQ - higher frequency but stricter VIN min. | Requires ≥1.8V input; unsuitable for single-cell alkaline or deeply discharged Li-ion. | Select when higher switching frequency is needed for smaller magnetics and input is guaranteed ≥1.8V. |
| Analog Devices ADP5052ACPZ-1-2-R7 | 2.7–5.5V input, 1.2V fixed, 3A, 2.2MHz, 35μA IQ - wider VIN range but higher IQ and cost. | Compatible with same input sources but consumes 40% more quiescent power in sleep mode. | Select when needing simultaneous multiple outputs (ADP5052 is quad-channel) or tighter output ripple spec. |
Compared with TPS6286512RQYR and ADP5052ACPZ-1-2-R7, MP2153GTF-12-Z offers the lowest IQ (25μA) and widest input range (2.5V min) in SOT563, making it optimal for space- and battery-constrained 1.2V core rails where 1.1MHz switching suffices.
Availability
MP2153GTF-12-Z is available at Aetrix Electronics and suitable for solid-state drives, portable medical instruments, battery-powered wireless sensors, and multi-function printer logic rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP2153GTF-12-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 power management ICs, with over two decades of innovation in DC/DC converters, LED drivers, and motor drivers.
The MP2153 product line targets ultra-compact, battery-sensitive applications requiring sub-30μA quiescent current and fixed-output simplicity - designed specifically for SSDs, wearables, and portable instrumentation where size and runtime are critical.
FAQ
What is the maximum recommended PCB copper area for thermal relief with MP2153GTF-12-Z in SOT563?
For continuous 3A operation at TA=85°C, Monolithic Power recommends ≥120mm² of 2oz copper connected to the exposed thermal pad via ≥4 thermal vias (0.3mm diameter). This achieves θJA ≈ 80°C/W, limiting junction temperature to 125°C. Smaller pads require derating to ≤2.2A.
Does MP2153GTF-12-Z require an external pull-up resistor on the PG pin?
No - MP2153GTF-12-Z does not include a Power Good (PG) pin. The PG function is only present on fixed-output variants with "-Z" suffix in the part number (e.g., MP2153GQFU-12), not on SOT563 versions like MP2153GTF-12-Z. Pin 5 (FB) is no-connect and must remain unconnected.
Can MP2153GTF-12-Z operate with a 0.47μH inductor instead of the recommended 1μH?
Yes, but with trade-offs: 0.47μH increases peak inductor current by ~25%, raising RMS losses and reducing efficiency by ~2–3% at 3A. It also increases output voltage ripple by ~40% and may trigger current limit during transients. Use only if board space constraints outweigh efficiency requirements.
What is the typical startup time from EN assertion to regulated 1.2V output?
Soft-start time is 0.5ms (typical), so regulated 1.2V output is achieved within 600μs of EN rising above 1.2V. This includes internal ramp generation and feedback loop stabilization; actual time may extend to 800μs under worst-case temperature and component tolerance conditions.
How does output discharge behave when EN is pulled low?
When EN falls below 0.4V, the internal 200Ω discharge MOSFET activates immediately, sinking current from the output capacitor until VOUT drops below 0.2V. Discharge time depends on COUT value - e.g., 22μF discharges in ~5ms, while 100μF takes ~22ms - ensuring safe reset before next power cycle.
Is MP2153GTF-12-Z qualified for automotive AEC-Q200 stress testing?
No - MP2153GTF-12-Z is rated for industrial temperature range (-40°C to +125°C) but is not AEC-Q200 qualified. For automotive applications, MPS offers the pin-compatible MPQ2153 series, which undergoes full AEC-Q200 qualification including temperature cycling and vibration testing.
What failure modes trigger automatic recovery versus latch-off behavior?
MP2153GTF-12-Z uses hiccup-mode recovery for over-current and short-circuit faults (cycles ON/OFF until fault clears) and thermal shutdown with 30°C hysteresis (resumes operation after cooling). It latches off only during absolute VIN OVP (>6.1V), requiring power cycle to reset.
MP2153GTF-12-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MP
- Package/Case:
- SOT-563, SOT-666
- 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):
- 1.2V
- 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:
- SOT-563
MP2153GTF-12-Z FAQ
1.How can I place an order for MP2153GTF-12-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2153GTF-12-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 MP2153GTF-12-Z reliable?
The price and inventory of MP2153GTF-12-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2153GTF-12-Z is usually 5 days.
3.What payment methods are accepted for MP2153GTF-12-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2153GTF-12-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2153GTF-12-Z?
MP2153GTF-12-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2153GTF-12-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 MP2153GTF-12-Z?
For technical support, including MP2153GTF-12-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2153GTF-12-Z requirements.
6.How does Aetrix verify that MP2153GTF-12-Z is sourced from the original manufacturer or authorized distributors?
All MP2153GTF-12-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 MP2153GTF-12-Z meets industry standards.
7.What is the process for return or replacement of MP2153GTF-12-Z?
All MP2153GTF-12-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2153GTF-12-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 MP2153GTF-12-Z part is unused and in its original packaging.
Return procedure for MP2153GTF-12-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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