NCP1532
100
90
80
EFFICIENCY (%)
100
90
80
EFFICIENCY (%)
70
60
50
40
30
20
10
0
PFM
PWM
70
60
50
40
30
20
10
0
0
100
200
300
400
500
600
I
OUT1
, OUTPUT CURRENT (mA)
PWM
PFM
1
10
100
I
OUT1
, OUTPUT CURRENT (mA)
1000
Figure 4. Efficiency vs. Output Current
V
IN
= 3.6 V, V
OUT1
= 1.2 V, EN2 = GND
100
95
90
85
EFFICIENCY (%)
EFFICIENCY (%)
80
75
70
65
60
55
50
45
40
0
200
400
600
800
I
OUT1
, OUTPUT CURRENT (mA)
1000
25°C
85°C
−40°C
100
95
90
85
80
75
70
65
60
55
50
45
40
0
Figure 5. Efficiency vs. Output Current
V
IN
= 3.6 V, V
OUT1
= 1.2 V, EN2 = GND
V
BAT
= 5.5 V
2.7 V
3.6 V
200
400
600
800
I
OUT1
, OUTPUT CURRENT (mA)
1000
Figure 6. Efficiency vs. Output Current
V
IN
= 3.6 V, V
OUT1
= 1.2 V, EN2 = GND,
Temperature = 255C
100
95
90
85
EFFICIENCY (%)
75
70
65
60
55
50
45
40
0
200
400
600
800
1000
V
OUT
= 1.2 V
EFFICIENCY (%)
80
V
OUT
= 3.3 V
100
99
98
97
96
95
94
93
92
91
90
Figure 7. Efficiency vs. Output Current
V
OUT1
= 1.2 V, EN2 = GND, Temperature = 255C
5.5
5.0
4.5
4.0
3.5
3.0
I
OUT1
, OUTPUT CURRENT (mA)
V
IN
, INPUT VOLTAGE (V)
Figure 8. Efficiency vs. Output Current
V
IN
= 3.6 V, EN2 = GND, Temperature = 255C
Figure 9. Maximum Efficiency vs. Input Voltage
V
OUT1
= V
OUT2
= 3.3 V I
OUT1
= I
OUT2
= 100 mA
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