SC403BEVB 查看數據表（PDF） - Semtech Corporation

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SC403BEVB

6A EcoSpeed® Integrated FET Regulator with Programmable LDO

Semtech Corporation 

SC403B

Typical Characteristics (continued)

Characteristics in this section are based on using the applicable Detailed Application Circuit — 2.

Output Under-voltage Response — Normal Operation

VIN = 12V, VOUT = 1.5V, IOUT = 0A, VLDO = VDD = ENL = 3.3V, floating EN/PSV

Output Over-current Response — Normal Operation

VIN = 12V, VOUT = 1.5V, VLDO = VDD = ENL = 3.3V, EN/PSV= floating; IOUT ramped to trip point

(500mV/div)

(10V/div)

(500mV/div)

(5A/div)

(5V/div)

Time (100µs��/d��iv��)

Shorted Output Response — Normal Operation

VIN = 12V, VOUT = 1.5V, VLDO = VDD = ENL = 3.3V, EN/P5V is floating

(1V/div)

(10A/div)

(10V/div)

(5V/div)

Time (40µs��/d��iv��)

Transient Response

VIN = 12V, VOUT = 1.2V, IOUT = 0A to 6A, VLDO = VDD = EN/PSV= ENL = 5V

(10V/div)

(5V/div)

Time (100µs��/d��iv��)

Shorted Output Response — Soft-start Operation

VIN = 12V, VOUT = 1.5V, IOUT = 0A, VLDO = VDD = EN/PSV= ENL = 3.3V

(1V/div)

(10A/div)

(5V/div)

(5V/div)

Time (400µs��/d��iv��)

Transient Response

VIN = 12V, VOUT = 1.2V, IOUT = 6A to 0A, VLDO = VDD = EN/PSV= ENL = 5V

(50mV/div)

(50mV/div)

(10V/div)

Time (40µs��/d��iv��)

(10V/div)

Time (40µs��/d��iv��)

12

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