Rainbow-electronics MAX8508 Manuale Utente Scaricare il pdf (Pagina 10)

MAX8506/MAX8507/MAX8508

PWM Step-Down DC-DC Converters with 75m

Ω

Bypass FET for WCDMA and cdmaOne Handsets

10 ______________________________________________________________________________________

16 15 14 13

BATT

OUT

BATT

BATTP

BATT

OUT

REF

GND

5678

COMP

N.C.

PGND

SHDN

SKIP

THIN QFN

4mm x 4mm

16 15 14 13

BATT

OUT

BATT

BATTP

BATT

OUT

REFIN

REF

GND

5678

COMP

N.C.

PGND

SHDN

SKIP

THIN QFN

4mm x 4mm

TOP VIEW

MAX8508

MAX8506

MAX8507

Pin Configurations

CURRENT-

LIMIT

CONTROL

PWM

BATTP

OUT

COMP

PGND

GND

1MHz

OSC

REF

INPUT

2.6V TO 5.5V

4.7µH

OUTPUT

0.75V TO 3.4V OR V

BATT

4.7µF

0.3Ω

0.4Ω

0.075Ω

BATT

REF

2.2µF

0.22µF

SKIP

SHDN

5.6kΩ

2700pF

100pF

MAX8508

0.75V

Typical Application Circuits (MAX8508) (continued)

Chip Information

TRANSISTOR COUNT: 2020

PROCESS: BiCMOS

1 2 ... 5 6 7 8 9 10 11

MAX8506/MAX8507/MAX8508 1

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Rainbow-electronics MAX8508 Manuale Utente Pagina 10

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