S-19214 datasheet(19/46 Pages) ABLIC

Part #	S-19214

Description	AUTOMOTIVE, 125째C OPERATION, 36 V INPUT, 1000 mA VOLTAGE REGULATOR

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Manufacturer	ABLIC [ABLIC Inc.]

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AUTOMOTIVE, 125°C OPERATION, 36 V INPUT, 1000 mA VOLTAGE REGULATOR

Rev.1.1_00

S-19214 Series

19

3. ON / OFF pin

The ON / OFF pin controls the internal circuit and the output transistor in order to start and stop the regulator. When

the ON / OFF pin is set to OFF, the internal circuit stops operating and the output transistor between the VIN pin

and the VOUT pin is turned off, reducing current consumption significantly.

Note that the current consumption increases when a voltage of 0.8 V to VIN

− 0.3 V is applied to the ON / OFF pin.

The ON / OFF pin is configured as shown in Figure 21.

Since the ON / OFF pin is internally pulled down to the VSS pin in the floating status, the VOUT pin is set to the

VSS level.

Table 12

Product Type

ON / OFF Pin

Internal Circuit

VOUT Pin Voltage

Current Consumption

B

"H" : ON

Operate

Constant value*1

ISS1

B

"L" : OFF

Stop

Pulled down to VSS*2

ISS2

*1. The constant value is output due to the regulating based on the set output voltage value.

*2. The VOUT pin voltage is pulled down to VSS due to combined resistance (RLOW = 3.0 k

Ω typ.) of the

discharge shunt circuit and the feedback resistors, and a load.

VSS

ON / OFF

VIN

Figure 21

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