MAX1549ETL Datasheet, PDF(18/35 Page) Maxim Integrated Products – Dual, Interleaved, Fixed-Frequency Step-Down Controller with a Dynamically Adjustable Output

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MAX1549ETL Datasheet, PDF (18/35 Pages) Maxim Integrated Products – Dual, Interleaved, Fixed-Frequency Step-Down Controller with a Dynamically Adjustable Output

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Dual, Interleaved, Fixed-Frequency Step-Down

Controller with a Dynamically Adjustable Output

OSC

FSEL

SKIP

ILIM1

CSH1

CSL1

BST1

DH1

LX1

VDD

DL1

PGND

CC1

OUT1

ON1

PWM

CONTROLLER 1

(FIGURE 3)

REFIN

PGOOD1

FBLANK

OD1

OD2

OD3

POWER-GOOD AND

FAULT PROTECTION

(FIGURE 7)

GATE

LOGIC

BLANK

QUAD-LEVEL

DECODE AND

TIMER

PWM

CONTROLLER 2

(FIGURE 3)

FB2 DECODE

(FIGURE 10)

ILIM2

CSH2

CSL2

BST2

DH2

LX2

VDD

DL2

OUT2

FB2

ON2

REF

2.0V

VCC

REF

GND

POWER-GOOD AND

FAULT PROTECTION

(FIGURE 7)

PGOOD2

MAX1549

Figure 2. PWM-Controller Detailed Functional Diagram

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