Rainbow-electronics MAX1636 Manual do Utilizador descarregar pdf (Página 11)

MAX1636

Low-Voltage, Precision Step-Down

Controller for Portable CPU Power

______________________________________________________________________________________ 11

REF

POWER

200kHz

300kHz

OSC

PWM

LOGIC

TO VL

INPUT

REF

SHDN

V+ SYNC

PGND

BST

SKIP

CSH

CSL

REF

0.2V

GND

POWER

GOOD

REF

-5%

REF

+7%

REF

-30%

60kHz

LP FILTER

SHUTDOWN

CONTROL

1.1V

REF.

POWER

SWITCHOVER

TIMER

ERROR

INTEGRATOR

RESET

OVP

MAX1636

OVERVOLTAGE

FAULT

UNDER-

VOLTAGE

FAULT

OFF

SLOPE

COMPENSATION

LINEAR

REG.

Figure 2. Functional Diagram

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 22 23

EVALUATION KIT MANUAL 1
S DATA SHEET 1
ABSOLUTE MAXIMUM RATINGS 2
ELECTRICAL CHARACTERISTICS 2
MAX1636 TOC01 5
MAX1636 TOC02 5
MAX1636 TOC03 5
(Circuit of Figure 1, V 6
Pin Description 8
Standard Application Circuit 8
Detailed Description 10
Figure 2. Functional Diagram 11
Table 3 12
SSKKIIPP 12
PWM Table 12
Table 4. Powering the MAX1636 14
Table 5. Operating Modes 15
Adjustable-Output Feedback 17
(Dual-Mode FB) 17
Design Procedure 18
Output Filter Capacitor Value 19
Selecting Other Components 19
Low-Voltage Operation 20
SSOP.EPS 23

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