MAX1559 Datasheet, PDF (13/14 Pages) Maxim Integrated Products – 5-Output Power-Management IC For Low-Cost PDAs

5-Output Power-Management IC For
Low-Cost PDAs
V_IN
FEEDBACK
RESISTORS
SIMPLIFIED DC-DC CONVERTER
AV_DD
R1
i₁
V_DOUT
R_D
DAC
ERROR AMP
i_D
i₂
V_REF
1.25V
CONTROL
R2
MAX1559
V_OUT
(LCD BIAS)
Figure 4. Adjusting the Output Voltage with a DAC
Pin Configuration
TOP VIEW
16 15 14 13
COR1 1
IN 2
SDIG 3
ENSD 4
MAX1559
5
6
7
8
12 LFB
11 SWIN
10 SW
9 LX
Chip Information
PROCESS: BiCMOS
TRANSISTOR COUNT: 1872
THIN QFN
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