TC1305 Datasheet, PDF(4/18 Page) Microchip Technology – Dual 150mA CMOS LDO With Select Mode™ Operation, Shutdown and Independent RESET Output

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TC1305 Datasheet, PDF (4/18 Pages) Microchip Technology – Dual 150mA CMOS LDO With Select Mode™ Operation, Shutdown and Independent RESET Output

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TC1305

2.0 PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 2-1.

TABLE 2-1: PIN FUNCTION TABLE

Pin No.

(10-Pin MSOP)

Symbol

VDET

VIN

GND

SELECT

SHDN1

SHDN2

Bypass

VOUT1

VOUT2

RESET

Description

Detected input voltage. VDET and VIN can be connected together.

Power supply input.

Ground terminal.

Tri-state input for setting VOUT1 and VOUT2. SELECT = GND for VOUT1 = VOUT2 = 2.5V,

SELECT = VIN for VOUT1 = VOUT2 = 3.0V and SELECT = No connect for VOUT1 = VOUT2 = 2.8V.

Shutdown control input for VOUT1. Regulator 1 is fully enabled when a logic high is applied to

this input. Regulator 1 enters shutdown when a logic low is applied to this input. During

shutdown, regulator output voltage falls to zero, RESET output remains valid.

Shutdown control input for VOUT2. Regulator 2 is fully enabled when a logic high is applied to

this input. Regulator 2 enters shutdown when a logic low is applied to this input. During

shutdown, regulator output voltage falls to zero, RESET output remains valid.

Reference bypass input. Connecting a 0.01ÂµF to this input further reduces output noise.

Regulated voltage output 1.

Regulated voltage output 2.

RESET Output. RESET = Low when VDET is below the Reset Threshold Voltage.

RESET = High when VDET is above the Reset Threshold Voltage.

DS21526A-page 4

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