Datasheet Analog Devices LT3957AIUHE#PBF — 数据表

LT3957A
Boost, Flyback, SEPIC and
Inverting Converter
with 5A, 40V Switch
DESCRIPTION FEATURES n Wide Input Voltage Range: 3V to 40V
Single Feedback Pin for Positive or Negative
Output Voltage
Internal 5A/40V Power Switch
Current Mode Control Provides Excellent Transient
Response
Programmable Operating Frequency (100kHz to
1MHz) with One External Resistor
Synchronizable to an External Clock
Low Shutdown Current < 1μA
Internal 5.2V Low Dropout Voltage Regulator
Programmable Input Undervoltage Lockout with
Hysteresis
Programmable Soft-Start
Thermally Enhanced QFN (5mm × 6mm) Package The LT®3957A is a wide input range, current mode DC/DC
converter which is capable of generating either positive or
negative output voltages. It can be configured as either a
boost, flyback, SEPIC or inverting converter. It features
an internal low side N-channel power MOSFET rated for …