Rainbow-electronics MAX8737 Manual do Utilizador descarregar pdf (Página 10)

MAX8737

Dual, Low-Voltage Linear Regulator Controllers

with External MOSFETs

10 ______________________________________________________________________________________

OUT

Ω

RDSON

CURRENT

SENSE

ERROR

AMPLIFIER

REFIN

PGOOD

THE MAX8737 INCLUDES TWO LDOs AS SHOWN ABOVE.

REF

GND

88%

80%

60%

CONTROL

BLOCK

DELAY

LOGIC

ILIM_EN

DELAY

ILIM_EN

DRV

0.4V

MAX8737

OUT

4.7

F/A

OUTPUT

THERMAL

SHDN

5V BIAS

SUPPLY

INPUT

1.0V TO 5.5V

OFF ON

POWER

GOOD

LOGIC

SUPPLY

Figure 2. Functional Diagram

1 2 ... 5 6 7 8 9 10 11 12 13 14 15

General Description 1
Applications 1
Features 1
Pin Configuration 1
Ordering Information 1
ABSOLUTE MAXIMUM RATINGS 2
ELECTRICAL CHARACTERISTICS 2
MAX8737 toc01 4
MAX8737 toc02 4
MAX8737 toc03 4
(Circuit of Figure 1, T 6
CURRENT-LIMIT THRESHOLD 6
DISTRIBUTION 6
Pin Description 7
Detailed Description 8
UVP Short-Circuit Protection 9
Figure 2. Functional Diagram 10
Design Procedure 11
Regulator Compensation 12
External MOSFET Selection 12
PC Board Layout Guidelines 13
Chip Information 14
Package Information 15

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