MAX1820 データシートの表示（PDF） - Maxim Integrated

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MAX1820

WCDMA Cellular Phone 600mA Buck Regulators

Maxim Integrated 

WCDMA Cellular Phone 600mA

Buck Regulators

Ordering Information (continued)

PART

SYNC

FREQ (MHz)

OUTPUT VOLTAGE

TEMP RANGE

PIN-PACKAGE

UCSP MARK

MAX1821EBC*

MAX1821EUB

MAX1821XEBC*

MAX1821XEUB

No Sync

No Sync

13

13

Programmable

Programmable

Programmable

Programmable

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

3 ✕ 4 UCSP

10 µMAX

3 ✕ 4 UCSP

10 µMAX

AAC

—

AAV

—

*UCSP reliability is integrally linked to the user’s assembly methods, circuit board material, and environment. Refer to the UCSP

Reliability Notice in the UCSP Reliability section for more information.

Typical Operating Circuits (continued)

INPUT

2.6V TO

5.5V

BATT

LX

SHDN PGND

FB

MAX1821

SYNC COMP

OUTPUT

1.25V TO 5.5V

REF

SKIP GND

TOP VIEW AFTER ASSEMBLED ON PC BOARD (BUMPS AT THE BOTTOM)

1

2

3

4

SKIP

A

A1

COMP

OUT (FB)

REF

A2

A3

A4

SYNC

GND

B

B1

B4

SHDN

BATT

C

C1

C2

LX

PGND

C3

C4

( ) ARE FOR MAX1821 ONLY.

UCSP

TOP VIEW

Pin Configurations

SKIP 1

COMP 2

OUT (FB) 3

REF 4

GND 5

( ) ARE FOR MAX1821 ONLY.

MAX1820

MAX1821

µMAX

10 SYNC

9 SHDN

8 BATT

7 LX

6 PGND

16 ______________________________________________________________________________________

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