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PDF SC563 Data sheet ( Hoja de datos )
| Número de pieza | SC563 | |
| Descripción | Dual Output 300mA LDO Linear Regulator | |
| Fabricantes | Semtech | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SC563 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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POWER MANAGEMENT
Features
Input voltage range — 2.3V to 5.5V
Two 300mA (maximum) outputs
Dropout at 300mA load — 180mV (Typ)
Quiescent supply current — 50μA (x2)
Shutdown current — 100nA
Output noise — 100μVRMS /V
Over-temperature protection
Short-circuit protection
Under-voltage lockout
Internal output discharge 100W
MLPD-UT8, 1.6mm x 1.2mm x 0.6mm package
Applications
Consumer electronics
Wearable & Portable electronics
Cell phones
GPS devices
Set top boxes/HDTVs
Communication electronics
Industrial electronics
SC563
Dual Output 300mA LDO
Linear Regulator
Description
The SC563 is a dual output, low dropout linear voltage
regulator designed for use in battery powered applica-
tions and other applications with space constraints and
low power requirements. The SC563 provides fixed output
voltages up to 300mA of load current per channel. Fixed
output voltages for each output eliminates the need for
external feedback resistors.
The device has separate input, output and enable pins for
each LDO channel. Using the lowest possible input
voltage for each output voltage reduces the power loss
for each rail. This improves overall package thermal per-
formance and efficiency compared to single input voltage
devices.
The device has fast turn-on and turn-off voltage slew rate
for fast system start up and reset response. Low quiescent
current extends battery life.
The SC563 family of devices provide protection circuitry
such as short-circuit protection, under-voltage lockout,
and thermal protection to prevent device failures. Stability
is maintained by using 1µF capacitors on the output pins.
The MLPD-UT8 1.6mmx1.2mm package and small ceramic
bypass capacitors minimize the required PCB area.
Typical Application Circuit
Rev 2.0
V IN 1
EN1
V IN 2
EN2
C IN1
C IN2
1 µF 1 µF
V IN 1
OUT1
E N 1 SC563
VIN2 OUT2
EN2
GND PAD GND
OUT 1
OUT 2
COUT1
1 µF
C OUT2
1uF
1 page  
Pin Configurations and Descriptions
SC563
1
2
3
Pin Name Pin Function
GND Ground
OUT1 Output for LDO1 --bypass with a 1uF capacitor
OUT2 Output for LDO2 --bypass with a 1uF capacitor
4 GND Ground
5 EN2 Enable for LDO2, internal 5 MW pull low.
6 VIN2 Input supply for LDO2 --bypass with a 1uF capacitor
7 VIN1 Input supply for LDO1-- bypass with a 1uF capacitor
8 EN1 Enable for LDO1, internal 5 MW pull low.
PAD Heat sink pad, connect to ground on PCB.
SC563
5 Page 
Typical Waveforms
1.0E-04
LDO1=3.3V Noise Spectral Density
1.0E-05
1.0E-06
1.0E-07
1.0E-08
1.0E+01
1.0E+02
1.0E+03
1.0E+04
Frequency (Hz)
VIN = 5.4V, VOUT = 3.3V, Load 50 Ohms
1.0E+05
100
90
80
70
60
50
40
30
20
10
0
100
LDO2=1.8V, PSRR, Iout=30mA
1000
10000
100000
Frequency (Hz)
1000000
SC563
1.0E-04
LDO2=1.8V Noise Spectral Density
1.0E-05
1.0E-06
1.0E-07
1.0E-08
1.0E+01
1.0E+02
1.0E+03
1.0E+04
Frequency (Hz)
VIN = 5.4V, VOUT = 3.3V, Load 50 Ohms
1.0E+05
120
100
80
60
40
20
0
100
LDO2=1.8V, PSRR, Iout=100mA
1000
10000
100000
Frequency (Hz)
1000000
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet SC563.PDF ] | |
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