Voltage Regulator - Seiko Instruments
Description
www.
DataSheet4U.
com
Rev.
3.
0_00
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1170 Series
The S-1170 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, a built-in overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor, and a built-in thermal shutdown circuit prevents damage caused by the heat.
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 SOT-89-5 and 6-Pin HSON(A) packages realize high-density mounting.
Features
1.
5 V to 5.
5 V, selectable in 0.
1 V steps.
±1.
0% 120 mV typ.
(3.
0 V output product, IOUT = 300 mA) During operation: 80 µA typ.
, 160 µA max.
During shutdown: 0.
1 µA typ.
, 1.
0 µA max.
• High peak current capability: 800 mA output is possible (at VIN ≥ VOUT(S) + 1.
0 V)*1 Ensures long battery life.
• Built-in ON/OFF circuit: • Low ESR capacitor can be used: A ceramic capacitor of 4.
7 µF or more can be used for the output capacitor.
70 dB typ.
(at 1.
0 kHz) • High ripple rejection: Overcurrent of output transistor can be restricted.
• Built-in overcurrent protector: • Built-in thermal shutdown circuit: Damage caused by heat can be prevented.
SOT-89-5, 6-Pin HSON(A) • Small package: • Lead-free products *1.
Attention should be paid to the power dissipation of the package when the output current is large.
• Output voltage: • High-accuracy output voltage: • Low dropout voltage: • Low current consumption:
Applications
• Power supply for DVD and CD-ROM drives • Power supply for battery-powered devices • Power supply for personal communication devices • Power supply for note PCs
Packages
Package Name
SOT-...
Similar Datasheet
