M3TEK
Preliminary Datasheet
MT5032
800kHz Synchronous Step-up Converter with 5.5A Switches
DESCRIPTION
The MT5032 de...
M3TEK
Preliminary Datasheet
MT5032
800kHz Synchronous Step-up Converter with 5.5A Switches
DESCRIPTION
The MT5032 devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer battery. The converter generates a stable output
voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 2.1A at 5.3V at a supply
voltage down to 2.9V. The maximum peak current in the step-up switch is limited to a value of 5.5A. The MT5032 operates at 800kHz switching frequency and enters pulse-skip-mode (PSM) operation at light load currents to maintain high efficiency over the entire load current range. During shutdown, the load is completely disconnected from the battery.
FEATURES
Synchronous Step-up Converter with 2.1A Output Current From 2.9V Input Wide VIN Range From 2.9V to 5.5V Input Under-
voltage Lockout Protection Fixed and Adjustable Output
Voltage Built-in Output Over-
voltage Protection Light-Load Pulse Skip Mode Load Disconnect During Shutdown Output Short Circuit Protection Thermal Shutdown Protection Available in a SOP8_EP Packages
APPLICATIONS
Power Bank USB Charging Port (5V) DC/DC Micro Modules
2.9V to 5V Input
L1 1.2uH
C1 10uF
SW VIN EN
GND
MT5032
VOUT
R3 FB
R4
C2 C3 10uF 10uF
5.3V output up to 2.1A
PGND
Rev. 0.3 www.cnzls.com
Figure 1. MT5032 Typical Application Circuit
M3tekic Confidential
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