S-1315.pdf 데이터시트 (총 30 페이지) - 파일 다운로드 S-1315 데이타시트 다운로드

No Preview Available !

S-1315 Series
www.sii-ic.com
© Seiko Instruments Inc., 2011-2014
LOW CURRENT CONSUMPTION OUTPUT CAPACITOR-LESS
CMOS VOLTAGE REGULATOR
Rev.1.2_00
The S-1315 Series, developed by using the CMOS technology, is a positive voltage regulator IC of 200 mA output current
which has low dropout voltage, high-accuracy output voltage and low current consumption. The S-1315 Series enables high
density mounting due to output capacitor-less.
The current consumption is extremely low as 7 μA typ., and even without an output capacitor, it realizes high-speed
response.
It also has high-accuracy output voltage of ±1.0%.
Features
Output voltage:
1.0 V to 4.2 V, selectable in 0.05 V step
Input voltage:
1.4 V to 5.5 V
Output voltage accuracy:
±1.0% (1.0 V to 1.45 V output product: ±15 mV)
Dropout voltage:
Current consumption:
224 mV typ. (3.0 V output product, IOUT = 200 mA)
During operation: 7 μA typ., 13 μA max.
Output current:
Input and output capacitors:
During power-off: 0.1 μA typ., 1.0 μA max.
Possible to output 200 mA (VIN VOUT(S) + 1.0 V)*1
A ceramic capacitor of 0.1 μF or more can be used for the input capacitor.
Output capacitor is unnecessary, or a ceramic capacitor of 10 μF or less
can be used.
Ripple rejection:
65 dB typ. (1.0 V output product, f = 1.0 kHz)
60 dB typ. (2.8 V output product, f = 1.0 kHz)
Built-in overcurrent protection circuit:
Limits overcurrent of output transistor.
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 communication device
Constant-voltage power supply for mobile phone
Constant-voltage power supply for module
Packages
SOT-23-5
HSNT-6 (1212)
Seiko Instruments Inc.
1

No Preview Available !

LOW CURRENT CONSUMPTION OUTPUT CAPACITOR-LESS CMOS VOLTAGE REGULATOR
S-1315 Series
Rev.1.2_00
Block Diagrams
1. S-1315 Series A type
VIN
Overcurrent
protection circuit
*1
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
VSS
*1. Parasitic diode
2. S-1315 Series B type
VIN
Overcurrent
protection circuit
Figure 1
*1
VOUT
Function
ON / OFF logic
Discharge shunt
function
Constant current
source pull-down
Status
Active "H"
Available
Unavailable
ON / OFF
ON / OFF circuit
+
Reference
voltage circuit
*1
VSS
*1. Parasitic diode
Figure 2
2 Seiko Instruments Inc.

No Preview Available !

Rev.1.2_00
LOW CURRENT CONSUMPTION OUTPUT CAPACITOR-LESS CMOS VOLTAGE REGULATOR
S-1315 Series
3. S-1315 Series C type
VIN
Overcurrent
protection circuit
*1
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
VSS
*1. Parasitic diode
4. S-1315 Series D type
VIN
Overcurrent
protection circuit
Figure 3
*1
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
VSS
*1. Parasitic diode
Figure 4
Seiko Instruments Inc.
3