S1315 datasheet(21/43 Pages) SII

21 / 43 page

LOW CURRENT CONSUMPTION OUTPUT CAPACITOR-LESS CMOS VOLTAGE REGULATOR

Rev.1.2_00

S-1315 Series

Seiko Instruments Inc.

6. Overcurrent protection circuit

The S-1315 Series includes an overcurrent protection circuit having the characteristics shown in "1. Output voltage

vs. Output current (When load current increases) (Ta =

+25°C)" in " Characteristics (Typical Data)", in order to

protect the output transistor against an excessive output current and short circuiting between the VOUT pin and the

VSS pin. The current (Ishort) when the output pin is short-circuited is internally set at approx. 50 mA typ., and the normal

value is restored for the output voltage, if releasing a short circuit once.

Caution This overcurrent protection circuit does not work as for thermal protection. If this IC long keeps

short circuiting inside, pay attention to the conditions of input voltage and load current so that,

under the usage conditions including short circuit, the loss of the IC will not exceed power

dissipation of the package.

S1315 Datasheet(PDF) 21 Page - Seiko Instruments Inc