MAX1556 Datasheet, PDF (3/6 Pages) Maxim Integrated Products – MAX1556 Evaluation Kit

MAX1556 Evaluation Kit
Table 2. Output Voltage Selection (MAX1557ETB)
JU4
JU5
1 and 2
1 and 2
1 and 2
2 and 3
2 and 3
1 and 2
2 and 3
2 and 3
—
—
Note: Default configuration is JU4, JU5, and JU6 (1 and 2).
JU6
1 and 2
1 and 2
1 and 2
1 and 2
2 and 3
MAX1557 V_OUT
1.0V
1.3V
1.5V
ADJ
Shutdown
External Shutdown Control
The MAX1556 EV kit comes preset with SHDN and
SHDN2 pulled high so that the MAX1556 and MAX1557
are enabled when the input voltage is applied. To operate
the shutdown control from an external signal, remove the
shunt on JU3 for the MAX1556 (JU6 for the MAX1557).
Apply a logic high to SHDN to enable the MAX1556, or
apply a logic low to shut down the MAX1556. Apply a
logic high to SHDN2 to enable the MAX1557, or apply a
logic low to shut down the MAX1557.
IN
R5
100Ω
1
JU1 2
3
9
IN_P
C1
10µF
C11
0.47µF
1 _IN
10 _D1
U1
MAX1556
8
LX
L1
3.3µH
C2
22µF
7
PGND
4
OUT
C3
OPEN
C5
OPEN
SHDN
1
2
3 ^JU3
1 _JU2
2
3
5 _SHDN
6 _D2
GND
2
3
SS
C4
0.001µF
EXPOSED PAD
CONNECTED TO GND
Figure 1a. MAX1556 EV Kit Schematic (MAX1556)
OUT
R1
SHORT
GND
GND
R2
OPEN
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