Advanced Power
Electronics Corp.
APE1117-HF-3
Pin Descriptions
NAME I/O
Adj (GND) I
Vout
O
Vin
I
PIN #
1
2
3
FUNCTION
A resistor divider from this pin to the Vout pin and ground sets the
output voltage. (Ground only for Fixed-Mode)
The output of the regulator. A capacitor with a minimum value of
10µF, 0.15Ω ≤ ESR ≤ 1Ω) must be connected from this pin to
ground to ensure stability.
The input pin of regulator. Typically a large storage capacitor
(0.15Ω ≤ ESR ≤ 1Ω) is connected from this pin to ground to
ensure 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 Vout in order for the device to
regulate properly.
Absolute Maximum Ratings
Symbol
Parameter
Vin DC Supply Voltage
PD Power Dissipation
TST Storage Temperature
TOP Operating Junction Temperature Range
Rating
Unit
-0.3 to 16
V
Internally Limited
-65 to +150
°C
0 to +150
°C
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www.a-powerusa.com
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