MP2155

MP2155

High-Efficiency, Single-Inductor Buck-Boost Converter with 2.2A Switches

Datasheet

Description

The MP2155 is a highly efficient, low quiescent current Buck-Boost converter, which operates from input voltage above, below and equal to the output voltage. The device provides power solution for products powered by a one-cell Lithium-Ion or multi-cell alkaline battery applications where the output voltage is within battery voltage range.

The MP2155 uses a current mode, fixed frequency PWM control for optimal stability and transient response. The fixed 1MHz switching frequency and integrated low RDS(ON) N-channel and P-channel MOSFETs minimize the solution footprint while maintaining high efficiency.

To ensure the longest battery life MP2155 has an optional pulse skipping mode that reduces switching frequency under light load conditions. For other low noise applications where variable frequency power save mode may cause interference, the logic control input MODE pin forces fixed frequency PWM operation under all load conditions.

The MP2155 operates with input voltage from 2V to 5.5V to provide adjustable output voltage (1.5V to 5V). With an input from 2.7V to 5.5V it can supply a maximum 1A current to load at 3.3V output voltage. The MP2155 is available in small QFN10-3x3mm package.

Features & Benefits

High Efficiency up to 95%.
Load Disconnect During Shutdown
Input Voltage Range: 2V to 5.5V
Adjustable Output Voltage from 1.5V to 5V
3.3V/1A Load Capability from 2.7V-to-5.5V Vin
1MHz Switching Frequency
Pulse Skipping Mode at Light Load
Typical 80μA Quiescent Current
Internal Loop Compensation for Fast Response
Internal Soft Start
OTP, Hiccup SCP
Available in Small 3x3mm QFN10 Package

Active Part Numbers:

MP2155GQ-P MP2155GQ-Z

Meaning of P & Z

Related Products

EV2155-Q-00A High-Efficiency, Single-Inductor, Buck-Boost DC/DC Converter Evaluation Board

The EV2155-Q-00A is an evaluation board designed to demonstrate the capabilities of the MP2155, a highly efficient, low quiescent current (I_Q), buck-boost converter. It can operate from an input voltage (V_IN) above, below, or equal to its output voltage (V_OUT). The device is ideal for products powered by a single-cell lithium-ion or multi-cell alkaline battery where the IC’s V_OUT is within the battery voltage range.

The device operates from a 2V to 5.5V V_IN range, and has an adjustable 1.5V to 5V V_OUT.

The MP2155 and is available in a QFN-10 (3mmx3mm) package.

$25.00
+ tax