SC8863(2000) Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC8863 Datasheet PDF : 9 Pages
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150mA ULTRA LOW DROPOUT,
LOW NOISE REGULATOR
SC8863
March 1, 2000
PIN DESCRIPTIONS
Pin # Pin Name
1 EN
2 GND
3 IN
4 OUT
5 SET
Description
Active high enable pin. Connect to VIN if not being used.
Ground pin. Can be used for heatsinking if needed.
Input pin.
Regulator output, sourcing up to 150mA
Connecting this pin to ground results in the internally preset value for
VOUT. Connecting to an external resistor divider changes VOUT to:
VOUT
= 1.250 • 1+
R1
R2
TYPICAL APPLICATION - INTERNALLY PRESET OUTPUT VOLTAGE
VIN > VOUT + VD(MAX)
U1
3 VIN
SC8863
VO 4
C1
1uF Ceramic
1 EN GND SET 5
2
VOUT @ IOUT up to 150mA
C2
1uF Ceramic
TYPICAL APPLICATION - EXTERNALLY SET OUTPUT VOLTAGE(1)
VIN > VOUT + VD(MAX)
C1
1uF Ceramic
U1
3
VIN
SC8863
4
VO
1 EN GND SET 5
2
VOUT @ IOUT up to 150mA
R1
R2
10k
C2
2.2uF Ceramic
NOTES:
(1) Select R1 and R2 such that the current flowing through them is ≥ 10µA (i.e. R2 ≤ 120kΩ). A value of 10kΩ is
recommended for R2. Please see Component Selection - Externally Set Output.
© 2000 SEMTECH CORP.
2
652 MITCHELL ROAD NEWBURY PARK CA 91320
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