SC414 データシートの表示（PDF） - Semtech Corporation
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SC414 Datasheet PDF : 29 Pages
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SC414/SC424
Typical Characteristics (continued)
Characteristics in this section are based on using the Typical Application Circuit on page 2 (SC414/SC424).
Ultrasonic Powersave Mode — No Load (SC414)
V = 12V, V = 1V, I = 0A, V = V = EN/PSV= ENL = 5V
IN
OUT
OUT
LDO
5V
Powersave Mode — No Load (SC424)
V = 12V, V = 1V, I = 0A, V = V = EN/PSV= ENL = 5V
IN
OUT
OUT
LDO
5V
(50mV/div)
(50mV/div)
(5V/div)
Time (10μs/div)
Self-Biased Start-Up — Power Good True
V = 0V to 12V step, V = 1V, I = 0A, V = V = EN/PSV= ENL = 5V
IN
OUT
OUT
LDO 5V
(500mV/div)
(2V/div)
(10V/div)
(5V/div)
Time (10ms/div)
Enabled Loaded Output — Power Good True
VIN = 12V, VOUT = 1V, IOUT = 1A, VLDO = V5V = ENL = 5V. EN/PSV= 5V
(500mV/div)
(5V/div)
Time (10ms/div)
Forced Continuous Mode — No Load
VIN = 12V, VOUT = 1V, IOUT = 0A, VLDO = V5V = ENL = 5V, EN/PSV= float
(50mV/div)
(5V/div)
Time (2μs/div)
Output Over-current Response — Normal Operation
V = 12V, V = 1V, V = V = ENL = 5V, EN/PSV= floating; I ramped to trip point
IN
OUT
LDO 5V
OUT
(500mV/div)
(5A/div)
(5V/div)
(10V/div)
(5V/div)
Time (1ms/div)
(5V/div)
Time (100μs/div)
10
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