JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

MP2159A

High Efficiency, 1A, 6V, 1.5MHz, 17uA Iq, COT Synchronous Step Down Converter with better Vfb accuracy and better load regulation in TSOT23-8

Datasheet

Overview
Design Resources
Technical Forum
Quality

Vin (Max) <= 7V
MP2159A

MP2159A

High Efficiency, 1A, 6V, 1.5MHz, 17uA Iq, COT Synchronous Step Down Converter with better Vfb accuracy and better load regulation in TSOT23-8

Datasheet

Description

The MP2159A is a monolithic step-down, switch-mode converter with built-in power MOSFETs. It achieves a 1 A continuous output current from a 2.5 V to 6 V input voltage range with excellent load and line regulation. The output voltage can be regulated as low as 0.6 V.
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 MP2159A is available in a small TSOT23-8 package and requires a minimum number of readily available, standard, external components.
The MP2159A is ideal for a wide range of applications including high-performance DSPs, FPGAs, PDAs, and portable instruments.

Features & Benefits

Very Low IQ: 17 μA
Default 1.5 MHz Switching Frequency
1.5% VFB Accuracy
EN and Power Good for Power Sequencing
Wide 2.5 V to 6 V Operating Input Range
Output Adjustable from 0.6 V
Up to 1 A Output Current
100% Duty Cycle in Dropout
120 mΩ and 90 mΩ 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:

MP2159AGJ-P MP2159AGJ-Z MP2159AXN

Recommended Inductors

Low-Profile Molded Inductor 1.5µH

Semi-Shielded Inductor 1.5µH

Low-Profile Molded Inductor 1.5µH

Show more

Show more

Inductor Selector Tool

*Based on Nominal Values

Design Resources

Model of this part to simulate in MPSmart Software

MPSmart Simulation

Software to simulate MPS ICs

Symbol, Footprint & 3D Model

30+ more formats Show more

Show more

Cad Symbols

Symbols (36)

Cad Footprints

Footprint (34)

Cad 3D Models

3D Models (15)

Buy direct from MPS

Talk to an Engineer or get a Quote

Technical Forum

Questions answered by MPS engineers in 24h

High (and Variable) Voltage Source to 3.3V and 12-18V?

I’m looking at the MP9488, which looks close to what I want to do. Basically, I have a solar array on one side that could be anywhere from 80VDC to 12...

DC-DC POWER CONVERTERS

Latest activity a day ago

Using MP2348 for 12V output

Are the MP2348GTL specs guaranteed for input of 24V to output 12V?

DC-DC POWER CONVERTERS

Latest activity a day ago

Questions about MP8796B?

HI MPS expert, 1.MP8796B datasheet describes the register has default value as below： MFR_CTRL_VOUT [1:0]=00 =>Vref/Vout=1 VOUT_SCALE_LOOP=0X2...

DC-DC POWER CONVERTERS

Latest activity 3 days ago

Get technical support

Quality Policy, Certificates & Reliability Reports

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

See All Quality Documents

reliability-report

Reliability Report

quality-policy

Quality Policy

iso-certificate

ISO Certificate

RoHS/Lead Free Policy