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S-1122B18MC-L8DTFG Datasheet(数据表) 1 Page - Seiko Instruments Inc

部件型号  S-1122B18MC-L8DTFG
说明  HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
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制造商  SII [Seiko Instruments Inc]
网页  http://www.sii.co.jp
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Rev.5.0_00
HIGH RIPPLE-REJECTION AND LOW DROPOUT
CMOS VOLTAGE REGULATOR
S-1112/1122 Series
Seiko Instruments Inc.
1
The S-1112/1122 Series is a positive voltage
regulator with a low dropout voltage, high output
voltage accuracy, and low current consumption
developed based on CMOS technology.
A built-in low on-resistance transistor provides a
low dropout voltage and large output current, and a
built-in overcurrent protector prevents the load
current from exceeding the current capacitance of
the output transistor. An ON/OFF circuit ensures a
long battery life. Compared with the voltage
regulators using the conventional CMOS process,
a larger variety of capacitors are available,
including small ceramic capacitors. Small SNT-
6A(H) (S-1112 Series only) and
SOT-23-5 packages
realize high-density mounting. In SOT-23-5, the
lineup includes the S-1112 and S-1122 Series,
which differ in pin configuration.
Features
• Output voltage:
1.5 V to 5.5 V, selectable in 0.1 V steps.
• High-accuracy output voltage:
±1.0%
• Low dropout voltage:
190 mV typ. (3.0 V output product, IOUT
= 100 mA)
• Low current consumption:
During operation: 50
µA typ., 90 µA max.
During shutdown: 0.1
µA typ., 1.0 µA max.
• High peak current capability:
150 mA output is possible (at VIN
≥ VOUT(S) + 1.0 V)
*1
• Built-in ON/OFF circuit:
Ensures long battery life.
• Low ESR capacitor can be used: A ceramic capacitor of 0.47 µF or more can be used for the output
capacitor.
• High ripple rejection:
80 dB typ. (at 1.0 kHz)
• Built-in overcurrent protector:
Overcurrent of output transistor can be restricted.
• Small package:
SNT-6A(H)(S-1112 series only), SOT-23-5
• Lead-free products
*1. Attention should be paid to the power dissipation of the package when the output current is large.
Applications
• Power supply for battery-powered devices
• Power supply for personal communication devices
• Power supply for home electric/electronic appliances
• Power supply for cellular phones
Packages
Drawing code
Package name
Package
Tape
Reel
SNT-6A(H)
PI006-A
PI006-A
PI006-A
SOT-23-5
MP005-A
MP005-A
MP005-A




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