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MP2161A

High-Efficiency, 2A, 6V, 1.5MHz, 17µA I_Q, COT Synchronous Step Down Converter with Improved V_FB Accuracy and Load Regulation in a TSOT23-8 Package

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MP2161A

MP2161A

High-Efficiency, 2A, 6V, 1.5MHz, 17µA I_Q, COT Synchronous Step Down Converter with Improved V_FB Accuracy and Load Regulation in a TSOT23-8 Package

Datasheet

Description

The MP2161A is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves a 2A continuous output current from a 2.5V to 6V input voltage range with excellent load and line regulation. The output voltage is regulated as low as 0.6V.
The constant-on-time (COT) control scheme provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
The MP2161A is available in a small TSOT23-8 package and requires a minimum number of readily available, standard, external components.
The MP2161A is ideal for a wide range of applications including high performance DSPs, FPGAs, PDAs, and portable instruments.

Features & Benefits

Very Low IQ: 17μA
Default 1.5MHz Switching Frequency
1.5% VFB Accuracy
EN and Power Good for Power Sequencing
Wide 2.5V to 6V Operating Input Range
Output Adjustable from 0.6V
Up to 2A Output Current
100% Duty Cycle in Dropout
110mΩ and 60mΩ Internal Power MOSFET Switches
Cycle-by-Cycle Over-Current Protection
Short-Circuit Protection with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors
Available in a TSOT23-8 Package

Active Part Numbers:

MP2161AGJ-P MP2161AGJ-Z MP2161AGJ MP2161AXR

Meaning of P & Z

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*Based on Nominal Values

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Standard Pricing

In stock

MP2161AGJ-Z MP2161AGJ-P

Package: TSOT23-8

3,000 per Reel

Buy Now Price $0.77 1K

Quantity Unit Price
1

$1.60
10

$1.44
100

$1.16
250

$1.09
500

$0.95
1K

$0.77

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In stock now: 50,000

Order now, up to 50,000 estimated to ship by 27 Jun, 2025

Lead Time For Additional Quantities

Additional quantities estimated to ship by 12 Oct, 2025

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Technical Forum

Questions answered by MPS engineers in 24h

Can MP2161A start into a pre-biased rail?

Hello, Can MP2161A start into a pre-biased rail? I need a step-down converter from 3.3V to 1.8V. By the time the conve...

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All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.

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