Monolithic Power Systems Inc. MP2161AGJ-Z
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.38 | $2.38 |
| 15+ | $2.31 | $34.65 |
| 25+ | $2.26 | $56.50 |
| 50+ | $2.13 | $106.50 |
| 100+ | $1.88 | $188.00 |
| N+ | $0.38 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Monolithic Power Systems Inc. |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.5V |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 6V |
| Current - Output | 2A |
| Frequency - Switching | 1.5MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-8 Thin, TSOT-23-8 |
| Supplier Device Package | TSOT-23-8 |
| ROHS |
The MP2161AGJ-Z from Monolithic Power Systems is a high-efficiency, synchronous step-down (Buck) DC-DC converter designed for space-constrained applications. It operates from a 2.5V to 6V input and provides an adjustable output from 0.6V to 6V, delivering up to 2A of continuous current. With a fixed 1.5MHz switching frequency, it enables the use of tiny external components, reducing solution size. Its internal synchronous rectifier achieves high efficiency, making it suitable for battery-powered devices, SSDs, and networking equipment. The compact TSOT-23-8 package simplifies thermal management and PCB layout.
- High Efficiency: Synchronous rectification minimizes conduction losses, extending battery life in portable devices.
- Compact Solution Size: The 1.5MHz switching frequency allows for small inductors and capacitors, saving PCB area.
- Wide Output Flexibility: Adjustable output from 0.6V to 6V supports various low-voltage rails.
- Fast Transient Response: 2A current capability with stable control loop ensures reliable performance under load steps.
Battery-Powered Portable Devices
With a 2.5V to 6V input range and high 1.5MHz switching frequency, the MP2161AGJ-Z is ideal for single-cell Li-ion battery applications, enabling small external inductors and capacitors for compact designs.
Solid-State Drives (SSDs)
The 2A output current capability and fast transient response make it suitable for powering NAND flash memory and controller cores in SSDs, ensuring stable operation during read/write bursts.
Optical Modules
In SFP and QSFP transceivers, the low ripple and high efficiency of this buck converter help maintain signal integrity and thermal performance in tight PCB layouts.
Industrial Sensors
For 3.3V or 5V rails in industrial sensor nodes, the wide adjustable output down to 0.6V provides flexibility for powering low-voltage digital cores and analog front-ends.
Networking Equipment
The 1.5MHz frequency allows for a compact power stage in routers and switches, reducing board space while delivering clean power to ASICs and PHYs.
Point-of-Load (POL) Regulation
As a POL converter, it efficiently steps down 5V or 3.3V buses to lower core voltages, with 2A capability supporting multiple loads.
- Q: What type of converter is the MP2161AGJ-Z?
- A: It is a synchronous step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 2.5V to 6V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.6V to 6V.
- Q: What is the maximum output current?
- A: It can deliver up to 2A of continuous output current.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 1.5MHz.
- Q: What package is available?
- A: It is available in a thin SOT-23-8 (TSOT-23-8) package.
- Q: What type of converter is the MP2161AGJ-Z?
- A: It is a synchronous step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 2.5V to 6V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.6V to 6V.
- Q: What is the maximum output current?
- A: It can deliver up to 2A of continuous output current.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 1.5MHz.
- Q: What package is available?
- A: It is available in a thin SOT-23-8 (TSOT-23-8) package.

MP2161AGJ-Z.pdf