Rainbow-electronics MAX1688 Manuale Utente Scaricare il pdf (Pagina 11)

MAX1687/MAX1688

Step-Up DC-DC Converters with

Precise, Adaptive Current Limit for GSM

______________________________________________________________________________________________________ 11

OUT

0.1µF

47µF

2.7V TO 6V

CHG

40.2k

10µH

2000µF

187k

61.9k

LX1

LX2

OFF

REF

CHG

AGND

PGND

OUT

2A AT 12%

DUTY CYCLE

MAX1688

Figure 7. MAX1688 Typical Application Circuit (GSM Pulsed Load)

OUT

350mA

OUT

0.1µF

47µF

2.7V TO 6V

10µH

47µF

187k

61.9k

LX1

LX2

OFF

LIM

REF*

AGND

PGND

*TSSOP PACKAGE ONLY

MAX1687

Figure 6b. MAX1687 Typical Application Circuit (Fixed Non-Pulsed Load)

1 2 ... 6 7 8 9 10 11 12

/MAX1688 1
MAX1687/MAX1688 10

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Rainbow-electronics MAX1688 Manuale Utente Pagina 11

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