Rainbow-electronics MAX1791 Bedienungsanleitung PDF herunterladen (Seite 10)

MAX1762/MAX1791

High-Efficiency, 10-Pin µMAX, Step-Down

Controllers for Notebooks

10 ______________________________________________________________________________________

Figure 4. Operation with External Current-Sense Resistor

10µH

1µF

0.1µF

GND

10µF

150µF

OUT

REF

SHDN

OUT

MAX1762

MAX1791

10Ω

1µF

Table 1. Component Selection for Standard Applications

COMPONENT 1.8V/2.5V/3.3V/5.0V AT 2A 1V AT 2A

Input Voltage Range 5V to 20V 5V to 20V

Inductor (µH) 7 5.2

L1 Inductor

CDRH104-7R0NC

Sumida

CDRH104-5R2NC

Sumida

Q1 MOSFETS

NDS8958A

Fairchild

SI4539ADY

Fairchild

C1 Input Capacitor

TMK432BJ106KM

Taiyo Yuden

TMK432BJ106

Taiyo Yuden

C2 VL Cap

EMK3160J105KL

Taiyo Yuden

LMK316BJ475

Taiyo Yuden

C3 REF Cap

UMK316BI104KH

Taiyo Yuden

UMK316BI104KH

Taiyo Yuden

C4 Output Cap

10TPB220M

Sanyo

6TPB150M

Sanyo

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 19 20

MAX1762/MAX1791 1
Controllers for Notebooks 1
Design Procedure 14

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