SP9718
1.5A LOW-NOISE PWM STEP-DOWN REGULATOR
PERFORMANCE CHARACTERISTICS
(T
A
=25
℃
, unless otherwise specified.)
IN-RUSH CURRENT
Vin=5V, VREF=1V, Load=1.5A, Ip-p=1.81A
Vin=5V, VREF=4V, Load=1.5A, Ip-p=1.81A
EFFICIENCY
efficiency (V
OUT
=1V, load from 0.05A~1.5A)
efficiency (V
OUT
=4V, load from 0.05A~1.5A)
100.0%
95.0%
90.0%
Efficiency
80.0%
75.0%
70.0%
65.0%
60.0%
Efficiency
85.0%
0.
05
0.
6
0.
8
0.
2
0.
4
1
100.0%
98.0%
96.0%
94.0%
92.0%
90.0%
88.0%
86.0%
84.0%
82.0%
80.0%
0.05
0.2
0.4
0.6
Iout(A)
0.8
1
Iout(A)
2007/12/20
Ver.1
Page 7