APL1087R 데이터 시트보기 (PDF) - Anpec Electronics
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APL1087R
Anpec Electronics
APL1087R Datasheet PDF : 12 Pages
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APL1087R
Electrical Characteristics (Cont.)
Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Load line regulations are mea-
sured at a constant junction temperature by low duty cycle pulse testing.
Note 2: Dropout voltage is specified over the full output current range of the device. Dropout voltage is defined as the minimum input/
output differential measured at the specified output current. Test points and limits are also shown on the Dropout Voltage curve.
Note 3: Minimum load current is defined as the minimum output current required to maintain regulation.
Application Circuits
1.25V to 7.15V Adjustable Regulator
APL1087R
V
IN
IN
OUT
ADJ
R1
121Ω
+
10µF
C*
1
R2
V
OUT
+
100µF
C*
2
Improving Ripple Rejection
V IN
+
10µF
APL1087R
IN
OUT
ADJ
R2
R1
+ C*3
10µF
VOUT
150µ F
* Needed if device is far from filter capacitors
R1+ R2
VOUT = 1.250V×
R1
5V Regulator with Shutdown
* C3 improves ripple rejection.
XC should be approximately
equal to R1 at ripple frequency
V
IN
TTL
APL1087R
IN
OUT
+
10µ F
ADJ
1k
1k
121Ω
1%
+
365Ω
1%
5V
100µ F
Copyright ANPEC Electronics Corp.
4
Rev. A.2 - Apr., 2003
www.anpec.com.tw
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