S1167 Datasheet, PDF (1/31 Pages) Seiko Instruments Inc – ULTRA LOW CURRENT CONSUMPTION, HIGH RIPPLE REJECTION

S-1167 Series
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© Seiko Instruments Inc., 2004-2015
ULTRA LOW CURRENT CONSUMPTION, HIGH RIPPLE REJECTION
AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.3.2_00
The S-1167 Series is a positive voltage regulator with ultra low current consumption, high ripple rejection, low dropout
voltage and high-accuracy output voltage developed based on CMOS technology.
Although current consumption is very small with 9 μA typ., the S-1167 Series realized the 70 dB of high ripple rejection rate.
Besides, a ceramic capacitor of 1.0 μF can be used as the input and output capacitors.
Moreover, dropout voltage is also small since output voltage accuracy realizes ±1.0% of high accuracy, and the low-on-
resistance transistor is built-in. A built-in overcurrent protection circuit prevents that the load current from exceeding the
current capacity of the output transistor. The ON / OFF circuit ensures long battery life.
Two packages, SOT-23-5 and SNT-6A(H) are available.
Compared with the voltage regulators using the conventional CMOS technology, the S-1167 Series is the most suitable for
the portable equipments with ultra low current consumption and corresponding to the small package.
 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 ON / OFF circuit:
• Operation temperature range:
• Lead-free, Sn 100%, halogen-free^*2
1.5 V to 5.5 V, selectable in 0.1 V step
2.0 V to 6.5 V
±1.0%
150 mV typ. (3.0 V output product, I_OUT = 100 mA)
During operation:
9 μA typ., 16 μA max.
During power-off:
0.1 μA typ., 0.9 μA max.
Possible to output 150 mA (V_IN ≥ V_OUT(S) + 1.0 V)^*1
A ceramic capacitor of 1.0 μF or more can be used.
70 dB typ. (3.0 V output product, f = 1.0 kHz)
Limits overcurrent of output transistor.
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.
*2. Refer to “ Product Name Structure” for details.
 Applications
• Constant-voltage power supply for battery-powered device
• Constant-voltage power supply for cellular phone
• Constant-voltage power supply for portable equipment
 Packages
• SOT-23-5
• SNT-6A(H)
Seiko Instruments Inc.
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