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MP2158

High Efficiency, 1A, 6V, 1.5MHz, 17uA Iq, COT Synchronous Step Down Converter with PG in Ultra-small 2x1.5mm QFN

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MP2158

High Efficiency, 1A, 6V, 1.5MHz, 17uA Iq, COT Synchronous Step Down Converter with PG in Ultra-small 2x1.5mm QFN

Datasheet

Parameters Description

Vin (min) (V)
2.5
Vin (max) (V)
6
Iout (max) (A)
1
Iq (typ) (mA)
0.017
Vfb (V)
0.6
fsw (max) (kHz)
1500
Control Mode
COT Control
Package (mm)
QFN-8 (2x1.5)
Grade
Catalog
Regulated Outputs
1
Vout (min) (V)
0.6
Isw Limit (typ) (A)
2
Max Duty Cycle (%)
1
LDO Current (A)
0

The MP2158 is a monolithic step-down switch mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.5V to 6V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The MP2158 is available in the small QFN8 2.0x1.5mm package and requires a minimum number of readily available standard external components. The MP2158 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
EN and Power Good for Power Sequencing
Ultra-small 2.0x1.5mm QFN8 Package
Wide 2.5V to 6V Operating Input Range Output Adjustable from 0.6V
Up to 1A Output Current
118mΩ and 88mΩ Internal Power MOSFET Switches
Cycle-by-Cycle Over Current Protection
Short Circuit Protect with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors

Active Part Numbers:

MP2158GQH-P MP2158GQH-Z MP2158XN

Meaning of P & Z

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*Based on Nominal Values

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Standard Pricing

In stock

MP2158GQH-Z MP2158GQH-P

Package: QFN-8 (2x1.5)

5,000 per Reel

Buy Now Price $0.73 1K

Quantity Unit Price
1

$1.43
10

$1.28
100

$1.07
250

$1.02
500

$0.89
1K

$0.73

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In stock now: 361

Order now, up to 361 estimated to ship by 08 Oct, 2026

Lead Time For Additional Quantities

Additional quantities estimated to ship by 17 Oct, 2026

Ships after October 8th, Then arrives 3-4 business days. Shipping only $5 per order.

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Limited Inventory to support product development.

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Technical Forum

Questions answered by MPS engineers in 24h

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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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