MAX1686 Maxim, MAX1686 Datasheet - Page 11

• Manufacturer Part Number: MAX1686
• Description: Step-Up DC-DC Converters with Precise / Adaptive Current Limit for GSM
• Manufacturer: Maxim

Figure 7. MAX1688 Typical Application Circuit (GSM Pulsed Load)
Figure 6b. MAX1687 Typical Application Circuit (Fixed Non-Pulsed Load)
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*TSSOP PACKAGE ONLY
2.7V TO 6V
Precise, Adaptive Current Limit for GSM
2.7V TO 6V
40.2k
R
V
CHG
V
IN
IN
0.1 F
0.1 F
OFF
OFF
Step-Up DC-DC Converters with
47 F
47 F
ON
ON
LX1
LX1
IN
IN
ON
REF*
LIM
CHG
LX1
LX1
IN
IN
ON
REF
MAX1687
MAX1688
10 H
10 H
AGND
PGND
PGND
AGND
PGND
PGND
OUT
OUT
OUT
OUT
LX2
LX2
LX2
LX2
FB
FB
R2
187k
R1
61.9k
R2
187k
R1
61.9k
47 F
2000 F
V
350mA
V
2A AT 12%
DUTY CYCLE
OUT
OUT
= 5V
= 5V
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