S-13R1 Datasheet, PDF (2/49 Pages) Seiko Instruments Inc – REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR

REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR
S-13R1 Series
Rev.1.2_01
 Block Diagrams
1. S-13R1 Series A type
Reverse current
detection circuit
VIN
Overcurrent
protection circuit
Thermal shutdown circuit
VOUT
Function
ON / OFF logic
Discharge shunt
function
Constant current
source pull-down
Status
Active "H"
Available
Available
ON / OFF
ON / OFF
circuit
+
−
Reference
voltage
circuit
*1
*1
VSS
*1. Parasitic diode
2. S-13R1 Series B type
Figure 1
Reverse current
detection circuit
VIN
Overcurrent
protection circuit
Thermal shutdown circuit
VOUT
Function
ON / OFF logic
Discharge shunt
function
Constant current
source pull-down
Status
Active "H"
Available
Unavailable
ON / OFF
VSS
*1. Parasitic diode
ON / OFF
circuit
+
−
Reference
voltage
circuit
*1
*1
Figure 2
2