PIN CONNECTIONS
FIXED OUTPUT VOLTAGE
TO-92
Plastic Package (N)
8L SOIC
SO-Package (S)
TO-220 (T)
TO-263 (M)
OUTPUT
INPUT
TAB IS
GND
OUTPUT
1
2
3
4
8
7
6
5
OUTPUT
GND
OUTPUT
GROUND
GROUND
N/C
INPUT
GND
GROUND
GROUND
N/C
INPUT
INPUT
GND
Bottom View
Top View
Front View
Top View
ADJUSTABLE OUTPUT VOLTAGE
8L SOIC
SO-Package (S)
1
2
3
4
8
7
6
5
OUTPUT
GROUND
GROUND
ADJ
INPUT
GROUND
GROUND
ON/OFF
Top View
TYPICAL APPLICATIONS
AMS2930-X (Fixed Output)
AMS2930C (Adjustable Output)
VCC
VIN
UNREGULATED
INPUT
VOUT
REGULATED
OUTPUT
AMS2930
R3
51k
C2**
100µF
C1*
0.1
OUT
GND
VOUT
IQ
µF
OFF
ON/OFF
AMS2930
ADJUSTABLE
R1
28k
C1*
0.1
µ
F
+
ADJ
ON
C2**
100
*Required if regulator is located far from power supply filter.
**C2 must be at least 100µF to maintain stability; it can be increased
without bound to maintain regulation during transients and it should be
located as close as possible to the regulator. This capacitor must be rated
over the same operating temperature range like the regulator. The ESR
of this capacitor is critical (see curve) and it should by less than 1Ω over
the expected operating temperature range.
µ
F
GND
R2
VOUT = VREF × ( R1+R2)/R1
Note: Using 27k for R1 will automatically compensate for errors in VOUT
due to the input bias current of the Adjust Pin ( approx. 1µA)
Advanced Monolithic Systems http://www.ams-semitech.com
AMS [ Advanced Monolithic Systems Ltd ]
