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S-13R1 Datasheet Download - Seiko

Номер произв S-13R1
Описание REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR
Производители Seiko
логотип Seiko логотип 

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S-13R1 Даташит, Описание, Даташиты
S-13R1 Series
www.sii-ic.com
© Seiko Instruments Inc., 2012-2014
REVERSE CURRENT PROTECTION
CMOS VOLTAGE REGULATOR
Rev.1.2_00
The S-13R1 Series, developed by using the CMOS technology, is a positive voltage regulator IC of 150 mA output current,
which has low dropout voltage, high-accuracy output voltage and low current consumption.
Even with low current consumption of 5 μA typ., it has high ripple-rejection of 70 dB typ., and a ceramic capacitor of 1.0 μF or
more can be used as the input and output capacitors.
The S-13R1 Series includes an overcurrent protection circuit that prevents the load current from exceeding the current
capacity of the output transistor and a thermal shutdown circuit that prevents damage because of overheating.
Due to the built-in reverse current protection function, the reverse current flowing from the VOUT pin to the VIN pin can be
controlled as the small value 0.09 μA max. Therefore, IC protection diode is not needed.
Features
Output voltage:
1.2 V to 4.0 V, selectable in 0.05 V step
Input voltage:
2.0 V to 5.5 V
Output voltage accuracy:
±1.0% (1.2 V to 1.45 V output product: ±15 mV)
Dropout voltage:
150 mV typ. (3.0 V output product, IOUT = 100 mA)
Current consumption:
During operation: 5 μA typ., 9 μA max.
Output current:
During power-off: 0.1 μA typ., 1.0 μA max.
Possible to output 150 mA (VIN VOUT(S) + 1.0 V)*1
Input and output capacitors:
A ceramic capacitor of 1.0 μF or more can be used.
Ripple rejection:
70 dB typ. (3.0 V output product, f = 1.0 kHz)
Reverse current protection function:
IREV = 0.09 μA max.
Built-in overcurrent protection circuit:
Limits overcurrent of output transistor.
Built-in thermal shutdown circuit:
Prevents damage caused by heat.
Built-in ON / OFF circuit:
Ensures long battery life.
Constant current source pull-down is selectable.
Discharge shunt function is selectable.
Operation temperature range:
Ta = 40°C to +85°C
Lead-free (Sn 100%), halogen-free
*1. Attention should be paid to the power dissipation of the package when the output current is large.
Applications
Constant-voltage power supply for battery-powered device
Constant-voltage power supply for portable equipment
Constant-voltage power supply for home electric appliance
Constant-voltage power supply for mobile phone
Packages
SOT-23-5
SC-82AB
HSNT-4 (1010)
Seiko Instruments Inc.
1







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S-13R1 Даташит, Описание, Даташиты
REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR
S-13R1 Series
Rev.1.2_00
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 Seiko Instruments Inc.







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S-13R1 Даташит, Описание, Даташиты
Rev.1.2_00
REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR
S-13R1 Series
3. S-13R1 Series C 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"
Unavailable
Available
ON / OFF
ON / OFF
circuit
+
Reference
voltage
circuit
*1
VSS
*1. Parasitic diode
4. S-13R1 Series D type
Figure 3
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"
Unavailable
Unavailable
ON / OFF
ON / OFF
circuit
+
Reference
voltage
circuit
*1
VSS
*1. Parasitic diode
Figure 4
Seiko Instruments Inc.
3










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