Analog Devices MAX77859 Manual page 2

MAX77859 Evaluation Kit
DC SOURCE
C
IN
2.5V TO 22V
2x 10μF
35V 1206
ENABLE
FPWM
V
IO
C
VL
R
PU
2.2μF
15k
10V 0402
0402
POK/INTERRUPT
*CHOOS E R VALUE
SEL
R
BASED ON TABLE 2
Figure 1. MAX77859 Typical Application Circuit
SWITCH NODES PROBE POINTS
INPUT SUPPLY TERMINALS
INPUT VOLTAGE SENSE PINS
MAX77859 SOLUTION
Figure 2. MAX77859 Evaluation Board
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C C
BST1 BST2
0.22μF L 0.22μF
25V 0603 1.5μH 25V 0603
USING INTERNAL FEEDBACK RESI STORS
BST1 LX1 LX2 BST2
IN OUT
MAX77859
FB
EN SRP
FPWM
SRN
V
L V
IO
POKB/INTB SCL
SEL SDA
AGND PGND
SEL *
Evaluates: MAX77859 (WLP)
V
OUT
C
OUT
3.2V TO 16V
R
SENSE
2x 22μF
10m
25V 0805
IO SUPPLY
C
VIO
1.08V TO 2.0V
0.47μF
6.3V 0402
OPTIONAL
2
I C INTERFACE
USING EX TERNA L FEEDBA CK RESISTORS
OUT
C
OUT
R
SENSE
2x 22μF
R
TOP
10m
25V 0805
FB
R
BOT
SRP
SRN
OUTPUT LOAD TERMINALS
OUTPUT VOLTAGE SENSE PINS
2
I C SERIAL BUS TEST POINTS
MAXUSB_INTERFACE# CONNECTOR
Analog Devices | 2
V
OUT
3.0V TO 20V