Datasheet

MAX1951A
1MHz, 2A, 2.6V to 5.5V Input, PWM DC-DC
Step-Down Regulator with Enable
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MAX1951A
IN
ON
R1
51.1kΩ
R4
10Ω
C4
0.1µF
C2
220pF
R2
15.0kΩ
1%
R3
13.0kΩ
1%
L1
2µH
C3
10µF
C1
10µF
OFF
LX
COMP
1.5V AT 2A
2.6V TO 5.5V
FB
GND PGND
V
CC
COMPONENT VALUES
OUTPUT
VOLTAGE (V)
0.8
1.5
2.5
3.3
R1 (kΩ)
10
52.3
86.6
115
R2 (kΩ)
OPEN
15
15
15
R3 (kΩ)
SHORT
13
31.6
46.4
C2 (pF)
470
150
150
150
EN
Figure 2. MAX1951A Adjustable Output Typical Application Circuit