Copyright

 ANPEC Electronics Corp.

Rev. A.4 - Jun., 2003

APL1086

www.anpec.com.tw

4

APL1086

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

V

N

RMS Output

Noise

T

°C,10Hz≤F≤10kHz, (% of V

0.003

%

θ

th

Thermal

Resistance

Junction to Case, at Tab

Junction to ambient

15

50

°C/ W

OT

Over Temperature

Point

150

°C

Quiescent Current

APL1086-18

T

V

5.5

10

APL1086-25 V

5.5

10

APL1086-28 V

5.5

10

APL1086-33 V

5.5

10

mA

Application Circuits

* C1 improves ripple rejection.

X

equal to R1 at ripple frequency

* Needed if device is far from filter capacitors

1.25V to 10.7V Adjustable Regulator

Improving Ripple Rejection

R1

R2

R1

1.250V

+

×

=

V

IN

APL1086

OUT

IN

ADJ

TTL

121

Ω

365

Ω

1%

1%

+

1k

1k

5V

+

5V Regulator with Shutdown

V

IN

APL1086

OUT

IN

ADJ

121

Ω

365

Ω

1%

1%

V

OUT

150

C1

R1

R2

+

+

V

IN

C

1*

V

OUT 1

+

R1

R2

1k

APL1086

OU T

IN

ADJ

+

C

2

121

Ω

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.

Electrical Characteristics (Cont.)