STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.2.3_00
S-8533 Series
2. Output Current (IOUT) vs. Efficiency (η) Characteristics
The following shows the actual output current (IOUT) vs. efficiency (η) characteristics when the S-8533 Series is used
under conditions (1) to (26) in Table 4.
(1) S-8533A15AFT (CPH6303/CPH6403)
(2) S-8533A15AFT (Si3441DV/Si3442DV)
100
95
100
VIN = 2.7 V
95
90
85
80
V IN
= 2.7 V
90
85
80
75
75
70
65
60
70
65
5.0 V
5.0 V
60
55
50
55
50
1
10
100
Output current (mA)
1000
10000
1
10
100
Output current (mA)
1000
10000
(3) S-8533A33AFT (CPH6303/CPH6403)
(4) S-8533A33AFT (Si3441DV/Si3442DV)
100
95
100
V
95
90
85
80
75
70
65
60
55
50
IN = 4.0 V
V
N = 4.0 V
90
85
80
75
70
65
60
55
50
4.95 V
7.0 V
4.95 V
1
10
100
Output curren t (m A)
1000
10000
1
10
100
Output current (mA)
1000
10000
(5) S-8533A33AFT (CPH6302/CPH6402)
(6) S-8533A33AFT (Si3454DV/Si3455DV)
100
100
95
95
90
85
80
75
70
65
60
55
50
V
IN = 4.95 V
V
IN = 4.95 V
90
85
80
75
70
65
10 V
10 V
60
55
50
1
10
100
Output current (mA)
1000
10000
1
10
100
Output current (mA)
1000
10000
(7) S-8533A50AFT (CPH6302/CPH6402)
(8) S-8533A50AFT (Si3454DV/Si3455DV)
100
100
95
95
90
85
80
75
70
VIN = 6.0 V
V
IN = 6.0 V
90
85
80
75
7.5 V
7.5 V
16 V
16 V
70
65
60
55
10 V
65
60
10 V
55
50
50
1
10
100
Output current (mA)
1000
10000
1
10
100
Output current(mA)
1000
10000
Seiko Instruments Inc.
23
SII [ SEIKO INSTRUMENTS INC ]
