S-1137 Datasheet, PDF (2/47 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR
S-1137 Series
Rev.2.1_01
 Block Diagrams
1. S-1137 Series A type
*1
VIN
Overcurrent
protection circuit
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Status
Active “H”
Available
Available
ON / OFF
SSC
ON / OFF
circuit
+
Soft-start ^−
circuit
Reference
voltage circuit
*1
*1
VSS
*1. Parasitic diode
Figure 1
2. S-1137 Series B type
*1
VIN
Overcurrent
protection circuit
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Status
Active “H”
Available
None
ON / OFF
SSC
ON / OFF
circuit
+
Soft-start ^−
circuit
Reference
voltage circuit
*1
*1
VSS
*1. Parasitic diode
Figure 2
2