CDH2D09 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
'CDH2D09' PDF : 44 Pages View PDF
PMIC with Integrated Charger and
Smart Power Selector for Handheld Devices
Typical Operating Characteristics (continued)
(Circuit of Figure 1, IVL = 0mA, TA = +25°C, unless otherwise noted.)
REG2 EFFICIENCY vs. LOAD CURRENT
100
90
80
70
PWM = 0
60 VOUT2 = 1.5V
50
40
PWM = 1
VOUT2 = 1.5V
30
20
10
0
1
VBATT = 4.0V
10
100
1000
LOAD CURRENT (mA)
REG2 LOAD REGULATION
1.60
1.55
1.50
1.45
1.40
0
50 100 150 200 250
OUTPUT CURRENT (mA)
REG3 EFFICIENCY vs. LOAD CURRENT
100
90
80
70
60 PWM = 0
VOUT2 = 1.2V
50
40
PWM = 1
VOUT2 = 1.2V
30
20
10
0
1
VBATT = 4.0V
10
100
1000
LOAD CURRENT (mA)
1.30
1.28
1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10
0
REG3 LOAD REGULATION
RFBH = 20kΩ
RFBL = 100kΩ
50 100 150 200 250
OUTPUT CURRENT (mA)
VOUT1
OUT3 LIGHT-LOAD SWITCHING
WAVEFORMS (PWM = 0)
MAX8671X toc35
20mV/div VOUT1
OUT3 HEAVY-LOAD SWITCHING
WAVEFORMS
MAX8671X toc36
10mV/div
VOUT1
OUT3 LOAD TRANSIENT
MAX8671X toc37
PWM = 0
100mV/div
VLX1
10mA LOAD
IL1
10μs/div
2V/div
VLX1
0
200mA/div
IL1
250mA LOAD
400ns/div
2V/div
0
25mA
200mA/div IOUT1
250mA
25mA
40μs/div
18 ______________________________________________________________________________________
100mA/div
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