Diodes AP1115 Uživatelský manuál stáhnout pdf (Strana 2)

AP1115

Document number: DS31025 Rev. 11 - 2

2 of 8

www.diodes.com

August 2012

P1115

Typical Applications Circuit

100uF

3.3V/0.5A

VIN

VOUT

GND

100uF

AP1115A (5V/3.3V Fixed Output)

)

REFo

Note:

GND

AP1115B (5V/3.3V Fixed Output)

100uF

3.3V/0.5A

121

100uF

2.5V/0.5A

Adj

100uF

AP1115A (5V/2.5V Adj Output)

121

100uF

2.5V/0.5A

Adj

100uF

AP1115B (5V/2.5V Adj Output)

Ω

VIN

VOUT

VIN

VOUT

VIN

Pin Descriptions

Pin Name I/O Function

Adj (GND) I

A resistor divider from this pin to the V

OUT

pin and ground sets the output voltage (Ground only for Fixed-

Mode).

OUT

The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤ ESR ≤ 20Ω) must be connected from this

pin to ground to insure stability.

The input pin of regulator. Typically a large storage capacitor (0.15Ω ≤ ESR ≤ 20Ω) is connected from this pin

to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load

transient response. This pin must always be 1.3V higher than V

OUT

in order for the device to regulate properly.

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