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Monolithic Power Systems Inc. MP2152GTF-12-P
- Part No.:
- MP2152GTF-12-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2152GTF-12-P.pdf
- Description:
- IC REG BUCK 1.2V 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:3,301
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Product details
Overview
MP2152GTF-12-P from Monolithic Power Systems is a fixed-output 1.2V, 2A synchronous step-down DC/DC converter in SOT563 package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 75mΩ/45mΩ power MOSFETs. It delivers stable low-voltage power for battery-powered microcontrollers and portable I/O rails with output discharge and over-voltage protection.
For engineers reviewing the MP2152GTF-12-P datasheet, MP2152GTF-12-P pinout, MP2152GTF-12-P application, or MP2152GTF-12-P equivalent, key selection criteria include its 1.2V fixed output accuracy (±1%), 25μA IQ at light load, EN-controlled sequencing, thermal shutdown at 160°C, and compatibility with compact 1µH inductors and 22µF ceramic output capacitors.
Technical Context
The MP2152GTF-12-P uses constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across 2.5–5.5V input range. Its internal high-side P-MOSFET (75mΩ) and low-side N-MOSFET (45mΩ) enable up to 2A continuous output with 100% duty-cycle capability for low-dropout operation.
Fault management includes cycle-by-cycle current limiting (2.8A peak), hiccup-mode short-circuit protection, VOUT OVP (115% of 1.2V = 1.38V), and absolute VIN OVP (6.1V). The fixed 1.2V version integrates a power-good (PG) open-drain output with ±10%/+15% regulation window and 150μs delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±1% (1188–1212mV at 25°C); enables precise core logic rail regulation without external feedback resistors. |
| Max Output Current | 2A continuous; supports single-chip power for ARM Cortex-M4/M7 MCUs or dual-core SoCs in space-constrained designs. |
| Quiescent Current | 30–35μA (typical); sustains >100-hour battery life in always-on sensor nodes with 200mAh Li-ion cells. |
| Switching Frequency | 1.1MHz nominal; allows use of 1–2.2μH shielded inductors under 2mm² footprint, minimizing EMI filter area. |
| 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. |
| Thermal Shutdown | 160°C with 30°C hysteresis; prevents latch-up during sustained 2A loads on 2-layer PCBs with minimal copper pour. |
| Power Good Accuracy | ±10% rising / +15% falling threshold relative to 1.2V; ensures reliable processor reset assertion before full rail stabilization. |
Pinout & Package
SOT563 (1.6mm × 1.6mm × 0.55mm) thermally enhanced package with exposed pad for improved heat dissipation; 6-pin layout optimized for high-density portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-frequency switch node current; must connect directly to thermal pad and low-impedance ground plane. |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects to inductor; carries full AC ripple current-requires shortest possible trace. |
| 3 VIN | Input supply | 2.5–5.5V unregulated input; requires local 10μF X5R ceramic capacitor within 2mm of pin to suppress switching noise. |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default disable; controls power sequencing with 150μs turn-on delay. |
| 5 - | Not connected (NC) | No internal connection; left floating or tied to GND per layout best practice to reduce parasitic coupling. |
| 6 PG | Power good indicator | Open-drain output requiring external 100–500kΩ pull-up to VIN; asserts high when VOUT is within ±10%/+15% of 1.2V. |
Key Features
| Feature | Design Value |
|---|---|
| Output discharge | Internal 200Ω discharge FET activates automatically during shutdown, discharging VOUT to <100mV in <1ms-prevents back-powering of upstream circuits. |
| VOUT over-voltage protection | Dynamically clamps output by turning on low-side FET until FB falls below 105% of 1.2V; prevents damage to 1.2V I/O peripherals during transient faults. |
| Constant-on-time control | Delivers <10μs load transient response (0–2A step) with no external compensation-reduces design cycle time for portable applications. |
| Ultra-low IQ sleep mode | Reduces operating current to 25–35μA at light loads (<10mA), extending battery runtime in BLE/Wi-Fi IoT endpoints without sacrificing startup speed. |
| 100% duty-cycle operation | Enables dropout as low as 120mV (at 2A), allowing direct regulation from 1.32V input-critical for aging battery operation in wearables. |
Applications
| Wireless Sensor Node Power | Portable Medical Device Rail |
|---|---|
Use Scenario: Powering ultra-low-power ARM Cortex-M0+ MCU, BLE radio, and analog front-end from coin cell or small Li-ion. IC Role / Device Role / Timing Role: Primary 1.2V core voltage regulator with EN-controlled wake-up sequencing and PG-synchronized firmware initialization. Use Value: 25μA IQ extends 200mAh CR2032 battery life to >2 years in sleep mode; 0.5ms soft-start prevents brown-out during cold boot. | Use Scenario: Supplying 1.2V digital logic for ECG signal processor and display controller in handheld diagnostic tool. IC Role / Device Role / Timing Role: Fixed-output buck converter with PG output enabling safe processor reset and display enable timing coordination. Use Value: ±1% output accuracy ensures ADC reference stability; output discharge prevents data corruption during battery swap. |
| Low-Voltage I/O System Power | Multi-Function Printer Logic Rail |
Use Scenario: Generating clean 1.2V supply for FPGA configuration banks and high-speed serial transceivers. IC Role / Device Role / Timing Role: Compact point-of-load regulator with 1.1MHz switching to minimize interference with 100MHz+ data buses. Use Value: 75mΩ/45mΩ MOSFETs achieve >90% efficiency at 1.5A, reducing thermal load in fanless enclosures. | Use Scenario: Powering 1.2V logic for print engine controller and paper feed ASIC in compact office printer. IC Role / Device Role / Timing Role: Robust DC/DC with hiccup-mode SCP and thermal shutdown protecting against motor stall-induced overloads. Use Value: 160°C thermal shutdown with 30°C hysteresis prevents cumulative thermal stress during repeated print cycles. |
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 |
|---|---|---|---|
| TPS62260DRVR | 1.2V fixed, 2A, 2.25MHz switching, 17μA IQ, WSON-6 package (2mm × 2mm) | Higher frequency enables smaller inductors but increases EMI sensitivity; lacks output discharge. | Select when board space permits larger inductor footprint and output discharge is not required for system safety. |
| RT7297BZSP | 1.2V fixed, 2A, 1.5MHz, 35μA IQ, TSOT23-6 package (2.9mm × 1.6mm) | TSOT23-6 has higher θJA (170°C/W vs. SOT563's 80°C/W); no PG output or VOUT OVP. | Choose only for cost-sensitive consumer applications where thermal derating and fault protection are secondary. |
Compared with TPS62260DRVR and RT7297BZSP, the MP2152GTF-12-P uniquely combines ultra-low IQ (30–35μA), integrated output discharge, and PG signaling in the smallest footprint (1.6mm²), making it optimal for battery longevity and functional safety in portable medical and industrial edge devices.
Availability
MP2152GTF-12-P is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical diagnostics, and low-voltage I/O systems requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MP2152GTF-12-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 analog and power ICs, headquartered in Kirkland, Washington, with global design and support centers.
The MP2152 product line targets ultra-compact, high-efficiency DC/DC conversion for battery-powered and space-constrained applications, emphasizing low IQ, fast transient response, and robust fault protection in sub-2mm² packages.
FAQ
What is the recommended input capacitor for MP2152GTF-12-P?
A minimum 10μF X5R/X7R ceramic capacitor placed within 2mm of the VIN and GND pins is required. Use parallel 1μF + 10μF for optimal high-frequency noise suppression. Avoid tantalum or electrolytic types due to ESR-related instability under COT control.
Does MP2152GTF-12-P support adjustable output voltage?
No. MP2152GTF-12-P is factory-trimmed for fixed 1.2V output. For adjustable versions, use MP2152GTF (with FB pin) or MP2152GQFU-12 in UTQFN package. The -12 suffix denotes laser-trimmed internal resistor divider; no external feedback is possible.
How does the power-good (PG) signal behave during startup?
PG remains low until VOUT reaches 90% of 1.2V (1.08V), then asserts high after 150μs delay. It stays high while VOUT remains between 1.08V and 1.38V; drops low if VOUT falls below 1.02V (85% of 1.2V) or exceeds 1.38V (115%).
Can MP2152GTF-12-P operate with 100% duty cycle?
Yes. The device supports 100% duty cycle down to VIN – VOUT = 120mV at 2A, enabling regulation from as low as 1.32V input. This is critical for maintaining operation during deep battery discharge in portable equipment.
What thermal derating applies to the SOT563 package at 60°C ambient?
At TA = 60°C, maximum continuous output current is ~1.6A (derated from 2A at 25°C) based on θJA = 80°C/W and TJ(MAX) = 125°C. Add 20mm² copper pour under thermal pad to improve heat dissipation by ~15%.
Is output discharge active during EN-driven shutdown?
Yes. Output discharge engages automatically whenever EN is pulled low or floats, regardless of VIN state. The internal 200Ω FET discharges VOUT to <100mV within 1ms, preventing back-powering of upstream circuitry or latch-up in multi-rail systems.
What inductor DCR limit ensures >90% efficiency at 2A?
Inductor DCR must be ≤27mΩ to maintain >90% efficiency at 2A and 5V input (per typical efficiency curves). Use shielded metal-alloy or multilayer chip inductors rated for ≥3A saturation current to avoid core saturation during peak transients.
MP2152GTF-12-P 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:
- 2A
- 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
MP2152GTF-12-P FAQ
1.How can I place an order for MP2152GTF-12-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2152GTF-12-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 MP2152GTF-12-P reliable?
The price and inventory of MP2152GTF-12-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2152GTF-12-P is usually 5 days.
3.What payment methods are accepted for MP2152GTF-12-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152GTF-12-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2152GTF-12-P?
MP2152GTF-12-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2152GTF-12-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 MP2152GTF-12-P?
For technical support, including MP2152GTF-12-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152GTF-12-P requirements.
6.How does Aetrix verify that MP2152GTF-12-P is sourced from the original manufacturer or authorized distributors?
All MP2152GTF-12-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 MP2152GTF-12-P meets industry standards.
7.What is the process for return or replacement of MP2152GTF-12-P?
All MP2152GTF-12-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2152GTF-12-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 MP2152GTF-12-P part is unused and in its original packaging.
Return procedure for MP2152GTF-12-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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