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Monolithic Power Systems Inc. MP2152GTF-15-Z
- Part No.:
- MP2152GTF-15-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MP2152GTF-15-Z.pdf
- Description:
- IC REG BUCK 1.5V 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:3,735
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Product details
Overview
MP2152GTF-15-Z from Monolithic Power Systems is a fixed-output 1.5V, 2A synchronous step-down DC/DC converter in SOT563 package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 75mΩ/45mΩ MOSFETs. It delivers stable power to low-voltage I/O rails in portable instruments and battery-powered devices with output discharge and over-voltage protection.
For engineers reviewing the MP2152GTF-15-Z datasheet, MP2152GTF-15-Z pinout, MP2152GTF-15-Z application, or MP2152GTF-15-Z equivalent, key selection criteria include its fixed 1.5V output accuracy (±1%), 2.5–5.5V input range, EN-controlled sequencing, thermal shutdown at 160°C, and compatibility with compact 1µH inductors and 22µF ceramic output capacitors.
Technical Context
The MP2152GTF-15-Z employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across its 2.5–5.5V input range and deliver precise 1.5V output with ±1% FB accuracy. Its internal high-side P-FET (75mΩ) and low-side N-FET (45mΩ) enable up to 2A continuous output while supporting 100% duty cycle for ultra-low dropout operation.
Fault management includes cycle-by-cycle current limiting (2.8A peak), hiccup-mode short-circuit protection, VOUT OVP (115% of 1.5V = 1.725V), absolute VIN OVP (6.1V), and thermal shutdown with 30°C hysteresis. The device enters sleep mode under light load to sustain 25μA IQ and uses zero-current detection (ZCD) to enforce DCM operation for efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% (1478–1522mV over –40°C to +125°C), enabling direct replacement of LDOs in 1.5V logic rails. |
| Max Output Current | 2A continuous, supported by internal 75mΩ P-FET and 45mΩ N-FET, eliminating external power switches. |
| Quiescent Current | 30–35μA (typical, fixed-VOUT mode), sustaining >100-hour runtime in coin-cell–powered IoT sensors. |
| Switching Frequency | 1.1MHz nominal, enabling use of small 1µH shielded inductors and minimizing EMI filter size. |
| Input Voltage Range | 2.5V to 5.5V, compatible with single Li-ion (3.0–4.2V), USB 5V, and dual alkaline (3.0V) sources. |
| Protection Features | VOUT OVP (115% threshold), hiccup-mode SCP, thermal shutdown (160°C), and output discharge on disable. |
| Enable Threshold | EN logic high ≥1.2V, with internal 1MΩ pull-down, allowing direct MCU GPIO control without external bias. |
Pinout & Package
SOT563 package (1.6mm × 1.6mm × 0.55mm, 0.5mm pitch), thermally enhanced with exposed pad (connected to GND), suitable for space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for high-current SW node and IC substrate; must be connected to large copper pour for thermal and EMI performance. |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; requires tight layout to minimize ringing and EMI. |
| 3 VIN | Main power input | Accepts 2.5–5.5V; requires local 4.7–10µF X5R/X7R ceramic capacitor placed within 2mm of pin for transient suppression. |
| 4 EN | Enable control input | Active-high logic interface; internal 1MΩ pull-down allows floating-disable; supports power sequencing with MCU or PMIC. |
| 5 PG | Power good open-drain output | Signals valid 1.5V output (±10%/+15% window); requires external 100–500kΩ pull-up to VIN for system reset coordination. |
| 6 OUT | Regulated output rail | Delivers 1.5V to load; connects to output capacitor (≥22µF ceramic); serves as feedback sense point in fixed-VOUT version. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 30–35μA in fixed-output mode enables >1-year battery life in always-on sensor nodes. |
| Integrated power MOSFETs | 75mΩ high-side + 45mΩ low-side switches eliminate external FETs and gate drivers, reducing BOM count by 4 components. |
| Output discharge on disable | Internal 200Ω discharge path rapidly collapses VOUT when EN is low, preventing back-powering of upstream circuitry. |
| Constant-on-time (COT) control | Delivers <10µs load transient response (0→2A) without external compensation, simplifying design for dynamic loads. |
| Thermal and over-voltage protection | 160°C shutdown with 30°C hysteresis and dual-stage OVP (VOUT + VIN) prevent damage during fault conditions. |
Applications
| Wireless Networking Cards | Portable Instruments |
|---|---|
Use Scenario: Powering 1.5V DDR I/O and RF front-end bias rails in mini-PCIe Wi-Fi modules. IC Role / Device Role / Timing Role: Primary buck regulator supplying clean, sequenced 1.5V to memory interfaces and transceiver analog blocks. Use Value: 1.1MHz switching avoids interference with 2.4GHz/5GHz bands; PG signal synchronizes firmware initialization after rail stabilization. |
Use Scenario: Supplying 1.5V core voltage to microcontrollers and precision ADCs in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Main system regulator delivering low-noise, tightly regulated 1.5V from a 3.7V Li-ion cell. Use Value: 25μA IQ extends battery life beyond 500 hours; output discharge prevents measurement drift during power cycling. |
| Battery-Powered Devices | Low-Voltage I/O System Power |
Use Scenario: Providing 1.5V to BLE SoCs and touch controllers in wearables and remote controls. IC Role / Device Role / Timing Role: High-efficiency step-down converter operating across full battery discharge curve (4.2V → 2.8V). Use Value: COT control maintains regulation stability at light loads (<1mA); EN pin enables deep-sleep wake-up sequencing. |
Use Scenario: Generating 1.5V for FPGA I/O banks, LVDS transceivers, and level-shifters in embedded edge AI modules. IC Role / Device Role / Timing Role: Secondary rail generator feeding isolated I/O domains requiring strict voltage tolerance and fast transient recovery. Use Value: ±1% output accuracy meets JEDEC JESD8-12B spec; 2A capability supports burst-mode I/O activity without droop. |
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 TPS62231DRYR | 1.5V fixed, 300mA max, 2.05MHz, 17μA IQ, SOT-563 | Lower current rating limits use to ultra-low-power MCUs-not suitable for 2A loads like SSDs or multi-rail systems. | Select only when load ≤300mA and higher switching frequency is required to shrink inductor size. |
| Analog Devices ADP2370AUJZ-1.5-R7 | 1.5V fixed, 800mA max, 1.2MHz, 30μA IQ, TSOT-23-6 | Lacks output discharge and PG pin; thermal derating begins above 60°C ambient-unsuitable for sealed enclosures. | Choose only for cost-sensitive, non-sequenced 800mA applications where discharge and rail monitoring are unnecessary. |
Compared with TPS62231DRYR and ADP2370AUJZ-1.5-R7, the MP2152GTF-15-Z uniquely combines 2A output, 25μA IQ, output discharge, and PG signaling in SOT563-making it the sole fit for space-constrained, battery-operated systems demanding full-feature 1.5V regulation.
Availability
MP2152GTF-15-Z is available at Aetrix Electronics and suitable for wireless networking cards, portable instruments, and battery-powered devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP2152GTF-15-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 analog and power ICs, with over 20 years of leadership in DC/DC conversion technology.
The MP2152 belongs to MPS's ultra-low-IQ synchronous buck converter product line, designed specifically for battery-powered and energy-sensitive applications where efficiency at light load and minimal solution footprint are critical.
FAQ
What is the exact output voltage tolerance of MP2152GTF-15-Z over temperature?
The MP2152GTF-15-Z delivers 1.5V output with guaranteed tolerance of ±1% (1478–1522mV) across the full operating junction temperature range of –40°C to +125°C, as validated by characterization per the datasheet Table 1 "OUT voltage (MP2152XXX-15)".
Does MP2152GTF-15-Z require an external feedback resistor divider?
No. The MP2152GTF-15-Z is a fixed-output variant with internal feedback network set to 1.5V; no external resistors are needed. Only adjustable versions (e.g., MP2152GTF) require R1/R2 dividers.
Can MP2152GTF-15-Z operate with input voltage below 2.5V?
No. The absolute minimum input voltage is 2.5V per datasheet specifications. Under-voltage lockout activates below 2.3V (typical), and operation outside 2.5–5.5V violates recommended conditions and may cause instability or failure.
What is the purpose of the PG pin, and how should it be connected?
The PG (power good) pin is an open-drain output that signals valid 1.5V regulation (within –10%/+15% window). It requires an external pull-up resistor (100–500kΩ) to VIN or VOUT; the internal MOSFET pulls PG low if output deviates from regulation.
Is thermal derating required for continuous 2A operation in SOT563?
Yes. At TA = +25°C, the SOT563 package supports 2A continuously. However, thermal resistance θJA = 80°C/W means ambient temperature must be limited to ≤65°C to keep TJ ≤125°C. For higher ambient, reduce load current or add copper area.
How does output discharge function, and what is its resistance value?
When EN is pulled low, the MP2152GTF-15-Z activates an internal discharge FET between OUT and GND. This provides a 200Ω (typical) resistive path, collapsing VOUT within milliseconds to prevent back-powering or latch-up in downstream circuitry.
What inductor value is recommended for optimal efficiency at 2A load?
A 1.0µH shielded metal-alloy inductor (e.g., Wurth 74437324010 or Cyntec PIFE25201B-1R0MS) is recommended. Its DCR <50mΩ minimizes conduction loss, and shielding suppresses EMI coupling into sensitive analog sections.
MP2152GTF-15-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):
- 1.5V
- 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-15-Z FAQ
1.How can I place an order for MP2152GTF-15-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2152GTF-15-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 MP2152GTF-15-Z reliable?
The price and inventory of MP2152GTF-15-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2152GTF-15-Z is usually 5 days.
3.What payment methods are accepted for MP2152GTF-15-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152GTF-15-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2152GTF-15-Z?
MP2152GTF-15-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2152GTF-15-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 MP2152GTF-15-Z?
For technical support, including MP2152GTF-15-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152GTF-15-Z requirements.
6.How does Aetrix verify that MP2152GTF-15-Z is sourced from the original manufacturer or authorized distributors?
All MP2152GTF-15-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 MP2152GTF-15-Z meets industry standards.
7.What is the process for return or replacement of MP2152GTF-15-Z?
All MP2152GTF-15-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2152GTF-15-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 MP2152GTF-15-Z part is unused and in its original packaging.
Return procedure for MP2152GTF-15-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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