SA57003 Datasheet, PDF (4/16 Pages) NXP Semiconductors – Five-output composite voltage regulator

Philips Semiconductors
Five-output composite voltage regulator
Product data
SA57003
PIN DESCRIPTION
PIN
SYMBOL
3, 5, 7, 11, 15 ON/OFF_n
DESCRIPTION
On/Off control pins for the output pins.
Connect to V_IN for always-on outputs.
2, 8, 6
NS₁, NS₂, NS₃ Noise-decrease bypass capacitor pins.
1, 9, 16
V_OUT1, V_OUT2, Voltage output.
V_OUT3
12, 14
V_OUT4, V_OUT5
Voltage output. These two outputs are powered
by the circuit that produced V_OUT3, and will be
turned on an off with the V_OUT3 output. They
may be independently switched ON or OFF
while V_OUT3 is active.
4
V_IN
10
GND
13
N/C
Common input supply voltage for all regulators.
Common circuit ground pin for all regulators.
No connection.
TERMINAL EQUIVALENT CIRCUIT
BIAS CIRCUIT
ON/OFF_N
R
300 kΩ
POWER
TRANSISTOR
DRIVE
CIRCUIT
R
400 kΩ
SL01424
TO V_OUT
R
NS_n
Cns
R
TO
ERROR
AMP
V_OUT3
POWER
TRANSISTOR
SL01425
V_OUT1,2,3
POWER
TRANSISTOR
DRIVE
CIRCUIT
C_OUT1,2,3
POWER
TRANSISTOR
SL01426
V_{OUT 4,5}
POWER
TRANSISTOR
DRIVE
CIRCUIT
C_{OUT 4,5}
SL01427
2003 Oct 13
4