Rainbow Electronics MAX5093 - Manual (Page 17)

MAX5092/MAX5093
4V to 72V Input LDOs with Boost Preregulator
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Applications Information (continued)
MAX5093A
U1
1
10 11
16
2
3
15
VL
14
9
12
13
4
7
8
5
6
LX LX
RESET
IN
EN
SGND
RESET
INPUT
4V TO 72V
L1
4.7µH
C1*
47µF
C2*
1µF
C6
1µF
C3*
1µF C4*
22µF
C7
10µF
C5
0.22µF
R3
100kΩ
VOUT
CT
BSOUT
BSFB
HOLD
OUT_SENSE
OUT
SET
PGND_LDO
VOUT
*THESE CAPACITORS MUST BE RATED AT THE HIGHEST V IN VOLTAGE.
**OUTPUT CURRENT IS LIMITED BY THE TOTAL OUTPUT POWER AND THE DISSIPATION CAPABILITY OF THE PACKAGE.
***SEE PC BOARD LAYOUT GUIDELINES SECTION.
µP
SIGNAL
OUTPUT
5V** (10V MAX)
OUTPUT
9V (12V MAX)
PGND_BST
R1
3.16MΩ (4.32MΩ)
R2
499kΩ
ON
OFF
R4
301kΩ (698kΩ)
R5
100kΩ
***
P
Figure 7. MAX5093A Typical Application Circuit with User-Programmable Boost Output Voltage and LDO Output Voltage