sc4508a Semtech Corporation, sc4508a Datasheet - Page 20

• Manufacturer Part Number: sc4508a
• Description: Sc4508a Buck Or Buck-boost Inverting Current-mode Controller
• Manufacturer: Semtech Corporation

Typical Characteristics
POWER MANAGEMENT
2007 Semtech Corp.
a: OUTPUT VOLTAGE, 5V/DIV
b: SS/EN PIN VOLTAGE, 5V/DIV
C: INDUCTOR CURRENT, 2A/DIV
D: VREF PIN VOLTAGE, 0.5V/DIV
Buck Converter Sartup
Buck Converter Sartup
Buck Converter Sartup
Buck Converter Sartup
Buck Converter Sartup
a: OUT PIN VOLTAGE, 10V/DIV
b: PHASE NODE VOLTAGE, 10V/DIV
c: INDUCTOR CURRENT, 200mA/DIV
a: OUT PIN VOLTAGE, 10V/DIV
b: SS/EN PIN VOLTAGE, 1V/DIV
c: INDUCTOR CURRENT, 2A/DIV
Buck Overcurrent Protection
Buck Overcurrent Protection
Buck Overcurrent Protection
Buck Overcurrent Protection
Buck Overcurrent Protection
Buck CCM Operation
Buck CCM Operation
Buck CCM Operation
Buck CCM Operation
Buck CCM Operation
500nS/DIV
50mS/DIV
10mS/DIV
20
Buck-Boost Overcurrent Protection
Buck-Boost Overcurrent Protection
Buck-Boost Overcurrent Protection
Buck-Boost Overcurrent Protection
Buck-Boost Overcurrent Protection
a: OUTPUT VOLTAGE, 5V/DIV
b: SS/EN PIN VOLTAGE, 5V/DIV
C: INDUCTOR CURRENT, 2A/DIV
D: VREF PIN VOLTAGE, 0.5V/DIV
Buck-Boost Converter Startup
Buck-Boost Converter Startup
Buck-Boost Converter Startup
Buck-Boost Converter Startup
Buck-Boost Converter Startup
a: OUT PIN VOLTAGE, 10V/DIV
b: PHASE NODE VOLTAGE, 10V/DIV
c: INDUCTOR CURRENT, 1A/DIV
a: OUT PIN VOLTAGE, 10V/DIV
b: SS/EN PIN VOLTAGE, 1V/DIV
c: INDUCTOR CURRENT, 2A/DIV
Buck-Boost DCM Operation
Buck-Boost DCM Operation
Buck-Boost DCM Operation
Buck-Boost DCM Operation
Buck-Boost DCM Operation
500nS/DIV
5mS/DIV
10mS/DIV
SC4508A
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