SC417 Ver la hoja de datos (PDF) - Semtech Corporation

Número de pieza

componentes Descripción

Fabricante

SC417

10A Integrated FET Regulator with Programmable LDO

Semtech Corporation 

SC417/SC427

Typical Characteristics (continued)

Characteristics in this section are based on using the Typical Application Circuit on page 2 (SC417).

VOUT vs. Load — Powersave Mode

Internally biased at VLDO = 5V, VIN = 12V, VOUT = 1.050V

1.100

V vs. Line — Forced Continuous Mode

OUT

1.100 Internally biased at VLDO = 5V, VIN = 12V, VOUT = 1.050V

1.075

+1%

1.050

-1%

1.025

1.075

+1%

1.050

-1%

1.025

1.000

0.10

1.00

IOUT (A)

10.00

Ultrasonic Powersave Mode — No Load

V = 12V, V = 1.05V, I = 0A, V = V = EN/PSV= ENL = 5V

IN

OUT

OUT

LDO

5V

(50mV/div)

1.073V

1.044V

Δ V ~ 29mV

(10V/div)

f=26.22kHz

(10V/div)

(5V/div)

Time (10μs/div)

1.000

6.0

8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0

VIN (V)

Forced Continuous Mode — No Load

V = 12V, V = 1.05V, I = 0A, V = V = ENL = 5V, EN/PSV= float

IN

OUT

OUT

LDO

5V

(50mV/div)

(10V/div)

1.078V

1.048V

f=227.4kHz

Δ V ~ 30mV

(10V/div)

(5V/div)

Time (2μs/div)

Enabled Loaded Output — Full Scale

V = 12V, V = 1.05V, I = 1A, V = V = ENL = 5V. EN/PSV= 5V

IN

OUT

OUT

LDO

5V

1.05V

(50mV/div)

ΔV/ΔT ~

0V

1.4V/ms

Enabled Loaded Output — Power Good True

V = 12V, V = 1.05V, I = 1A, V = V = ENL = 5V. EN/PSV= 5V

IN

OUT

OUT

LDO

5V

1.05V

(500mV/div)

0V

(10V/div)

(5V/div)

Time (100μs/div)

(10V/div)

(5V/div)

~2ms

Time (400μs/div)

8

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