SM1117A_11 Datasheet, PDF (2/4 Pages) SeCoS Halbleitertechnologie GmbH – 1A Low Dropout Positive Adjustable or Fixed-Mode Regulator

Elektronische Bauelemente
TYPICAL CIRCUIT
SM1117A
1A Low Dropout Positive
Adjustable or Fixed-Mode Regulator
BLOCK DIAGRAM
PIN DESCRIPTIONS
Name
I/O
Adj (Gnd)
I
V_OUT
O
V_IN
I
Pin#
1
2
3
Description
A resistor divider from this pin to the V_OUT pin and ground sets the output voltage
(Ground only for fixed mode)
The output pin of regulator. A min. of 10μF capacitor must be connected from this pin
to ground to insure stability.
The input pin of regulator. Typically a large storage capacitor is connected from this
pin to ground to insure that the input voltage does not sag below the min. 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.
ABSOLUTE MAXIMUM RATINGS
Parameter
DC Supply Voltage
Power Dissipation (T_A = 25°C)
Operating & Temperature Range
Symbol
Vin
P_D
T_STG
Ratings
Unit
-0.3 to 12
V
Internally Limited
0~150,-65~150
°C
http://www.SeCoSGmbH.com/
01-Jun-2011 Rev. B
Any changes of specification will not be informed individually.
Page 2 of 4