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.

5.5 V, selectable 0.1 V steps. 120 mV typ. (3.0 V output product, IOUT = 300 mA) During operation: 80 �A typ., 160 �A max. During shutdown: 0.1 �A typ., 1.0 �A max. *1� High peak current capability: 800 mA output is possible VIN VOUT(S) 1.0 V) Ensures long battery life.� Built-in ON/OFF circuit:� Low ESR capacitor can be used: A ceramic capacitor �F or more can be used for the output capacitor. 70 dB typ. 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: *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:

� 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

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.1.0_00 S-1170 Series Block Diagram

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.1.0_00 S-1170 Series Product Name Structure

� The product types, output voltage, and package types for the S-1170 Series can be selected at the user's request. Refer to the "Product name" for the meanings of the characters in the product name and "Product name list" for the full product names. 1. Product name xx � xxx TF IC direction in tape specifications Product abbreviation

Package abbreviation UC: SOT-89-5 PD: 6-Pin HSON(A) Output voltage to 55 (E.g., when the output voltage it is expressed as 15.) Product type A: ON/OFF pin negative logic B: ON/OFF pin positive logic *1. Refer to the taping specifications at the end of this book. *2. Refer to the product name list. *3. Refer to 3. Shutdown pin (ON/OFF pin) under the Operation.