SPX1117R-1-8 datasheet(9/16 Pages) SIPEX

Part #	SPX1117R-1-8

Description	800mA Low Dropout Voltage Regulator

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Manufacturer	SIPEX [Sipex Corporation]

Direct Link	http://www.sipex.com

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9 / 16 page

9

Apr 20-07 Rev B

SPX1117 800mA Low Dropout Voltage Regulator

Figure 24. 5V Regulator with Shutdown

SPX1117

V

IN

R

1

R

2

10µF

10µF*

1kΩ,

330Ω

1%

+

4.7µF

C

1

*C

1

improves ripple rejection.

Z

C

should be ~ R1 at ripple frequency

5V

ADJ

IN

OUT

(Note A)

V

OUT

Note A: V

IN(MIN) = (Intended VOUT

) + (V DROPOUT (MAX))

1%

1kΩ

SPX1117

10µF

1%

330W

1%

+

4.7µF

5V

ADJ

IN

OUT

(Note A)

1K

1k

TTL

Input

2N3904

DROPOUT (MAX)

Note A: V

IN(MIN)

= (Intended V

OUT

) + (V

)

V

IN

Figure 25. Recommended Connections for Best Results

Figure 23. Improving Ripple Rejection

SPX1117

R 2

R 1

Connect R

2

to Load

R L

Connect R to

Case of Regulator

RP Parasitic Line

Resistance

ADJ

VOUT

VIN

APPLICATION INFORMATION: Continued

PINOUTS

1

3

2

SOT-223 (M3)

Top View

TO-263-3 (T)

1

2

3

Front View

TO-220-3 (U)

1

2

3

Front View

TO-252 (R)

ADJ/GND

V

OUT

1

2

3

V

IN

ADJ/GND

V

OUT

V

IN

ADJ/GND

V

OUT

V

IN

ADJ/GND

V

OUT

V

IN

Top View

Note: For all Pinouts, TAB is connected to Pin2 VOUT.

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SPX1117R-1-8 Datasheet(PDF) 9 Page - Sipex Corporation

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