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S-1312 Datasheet PDF

Part Number S-1312
Description LOW CURRENT CONSUMPTION HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Manufacture Seiko
Total Page 30 Pages
PDF Download Download S-1312 Datasheet PDF

Features: Datasheet pdf S-1312 Series www.sii-ic.com © Seiko I nstruments Inc., 2011-2014 LOW CURRENT CONSUMPTION HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.2.3_ 00 The S-1312 Series, developed by usi ng the CMOS technology, is a positive v oltage regulator IC which has low curre nt consumption, high ripple-rejection a nd low dropout voltage. Even with low c urrent consumption of 20 μA typ., it h as high ripple-rejection of 75 dB typ., and a ceramic capacitor of 0.22 μF or more can be used as the input and outp ut capacitors. It also has high-accurac y output voltage of ±1.0%.  Featur es • Output voltage: • Input volta ge: • Output voltage accuracy: • Dr opout voltage: • Current consumption: • Output current: • Input and outp ut capacitors: • Ripple rejection: Built-in overcurrent protection circu it: • Built-in thermal shutdown circu it: • Built-in ON / OFF circuit: • Pull-down resistor is selectable. • D ischarge shunt function is selectable. • Operation temperature range: • Lead-free (Sn 100%), ha.

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S-1312 datasheet
S-1312 Series
www.sii-ic.com
© Seiko Instruments Inc., 2011-2014
LOW CURRENT CONSUMPTION HIGH RIPPLE-REJECTION
LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.2.3_00
The S-1312 Series, developed by using the CMOS technology, is a positive voltage regulator IC which has low current
consumption, high ripple-rejection and low dropout voltage.
Even with low current consumption of 20 μA typ., it has high ripple-rejection of 75 dB typ., and a ceramic capacitor of 0.22 μF
or more can be used as the input and output capacitors.
It also has high-accuracy output voltage of ±1.0%.
Features
Output voltage:
Input voltage:
Output voltage accuracy:
Dropout voltage:
Current consumption:
Output current:
Input and output capacitors:
Ripple rejection:
Built-in overcurrent protection circuit:
Built-in thermal shutdown circuit:
Built-in ON / OFF circuit:
Pull-down resistor is selectable.
Discharge shunt function is selectable.
Operation temperature range:
Lead-free (Sn 100%), halogen-free
1.0 V to 3.5 V, selectable in 0.05 V step
1.5 V to 5.5 V
±1.0% (1.0 V to 1.45 V output product: ±15 mV)
160 mV typ. (2.8 V output product, IOUT = 100 mA)
During operation: 20 μA typ., 30 μA max.
During power-off: 0.1 μA typ., 1.0 μA max.
Possible to output 150 mA (VIN VOUT(S) + 1.0 V)*1
A ceramic capacitor of 0.22 μF or more can be used.
75 dB typ. (1.2 V output product, f = 1.0 kHz)
70 dB typ. (2.85 V output product, f = 1.0 kHz)
Limits overcurrent of output transistor.
Prevents damage caused by heat.
Ensures long battery life.
Ta = 40°C to +85°C
*1. Attention should be paid to the power dissipation of the package when the output current is large.
Applications
Constant-voltage power supply for portable communication device, digital camera, and digital audio player
Constant-voltage power supply for battery-powered device
Constant-voltage power supply for home electric appliance
Packages
SOT-23-5
HSNT-4 (1010)
HSNT-4 (0808)
Seiko Instruments Inc.
1

S-1312 datasheet
LOW CURRENT CONSUMPTION HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1312 Series
Rev.2.3_00
Block Diagrams
1. S-1312 Series A type
VIN
Overcurrent
protection circuit
Thermal shutdown circuit
*1
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Status
Active "H"
Available
Available
ON / OFF
ON / OFF circuit
+
Reference
voltage circuit
*1
VSS
*1. Parasitic diode
2. S-1312 Series B type
VIN
Overcurrent
protection circuit
Thermal shutdown circuit
Figure 1
*1
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-down resistor
Status
Active "H"
Available
Unavailable
ON / OFF
ON / OFF circuit
+
Reference
voltage circuit
*1
VSS
*1. Parasitic diode
Figure 2
2 Seiko Instruments Inc.





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