XL7002 降压型直流电源变换器芯片(高电压型)

Features
n Wide 28 to 80V Input Voltage Range.
n 1.25V reference adjustable version.
n Recommend Output Voltage 5V to 20V.
n Current Mode Control Provides Excellent
Transient Response.
n Fixed 180KHz Switching Frequency.
n Maximum 0.5A Switching Current.
n Excellent line and load regulation.
n EN PIN TTL shutdown capability.
n Internal optimize power HV-MOSFET.
n Built in Frequency Compensation.
n Built in Soft-Start Function.
n Built in Thermal Shutdown Function.
n Built in Current Limit Function.
n Available in SOIC-8 package.
Applications
n EBIKE Controller Supply.
n High Voltage Buck Converter.
n Portable Electronic Equipment.
General Description
The XL7002 regulator is a wide input range,
current mode, DC/DC converter which is
capable of operation high input voltage up to
80V. The XL7002 built in N-channel power
MOSFET and fixed frequency oscillator,
current-mode architecture results in stable
operation over a wide range of supply and
output voltages.
The XL7002 regulator is special design for
portable electronic equipment.
Figure1. Package T*e of XL7002