7083A1K 查看數據表（PDF） - Fairchild Semiconductor

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7083A1K

150mA SOT-23 Low Noise CMOS RF-LDO™ Regulator

Fairchild Semiconductor 

ILC7083/ILC7084

VOUT

5

4

ILC7083

SOT-23-5

VIN

1

2

3

CIN

GND2

ON/OFF

COUT

ICOUT

True GND

(0V)

GND1

ILOAD

ILOAD

+IC OUT

+IC NOISE

+IC OUT

+ICNOISE

+IGND

GND3 GND4

GND5

ILOAD

ILOAD

+IC OUT

Figure 7. Effects of Poor Circuit Layout

VBATT

+

VIN

DC/DC

Converter

CIN

GND

C NOISE

5

4

ILC7083

SOT-23-5

123

ON/OFF

VOUT

COUT

ESR<0.5

Ground Plane

Ground Plane Ground Plane

Ground Plane

Figure 8. Recommended Application Circuit Schematic

Fairchild Semiconductor - Eval. Board

Figure 9. Recommended Application Circuit Layout (not drawn to scale)

Note, ground plane is bottom layer of PCB and connects to top layer ground connections through vias.

REV. 1.0.9 1/28/03

9

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