Monolithic Power Systems (MPS) MPQ3414B Step-Up Converters w/ Output Disconnect

Monolithic Power Systems (MPS) MPQ3414B Step-Up Converters w/ Output Disconnect are designed to operate from an input voltage as low as 1.8V. These step-up converters also provide inrush current limiting and output Short-Circuit Protection (SCP). The MPQ3414B step-up converters feature an integrated P-channel synchronous rectifier that improves efficiency and eliminates the need for an external Schottky diode. These step-up converters have a fixed switching frequency of 2.2MHz that allows for the use of small external components. The MPQ3414B step-up converters also offer internal compensation and Soft Start (SS) which reduces the number of external components. Typical applications include single-cell Li-ion backup batteries and automotive secondary regulation.

Features

2.8V to 4V input voltage (V_IN) range
Up to 5V output voltage (V_OUT)
Up 0.5A output current (I_OUT)
Internal synchronous rectifier
2.2MHz fixed switching frequency (f_SW)
52μA Quiescent current (I_Q)
<1μA shutdown current (I_SD)
Output disconnect
Up to 85% efficiency

Internal compensation, inrush current limiting, and internal Soft Start (SS)
Small external components
Over-Voltage Protection (OVP), Short-Circuit Protection (SCP), and Over-Temperature Protection (OTP)
Available in a TSOT23-8 package
Available in AEC-Q100 Grade 1

Applications

Single-cell Li-ion backup batteries
Automotive secondary regulation

Monolithic Power Systems (MPS) MPQ3414B Step-Up Converters w/ Output Disconnect

Features

Applications

Block Diagram

Typical Application Circuit

Efficiency vs. Load Current

husseinkey ELECTRONICS®

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