ACT5880
Rev 2, 03-Sep-13
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(TA = 25°C, unless otherwise specified.)
6. The REG1 Start from PWRHLD set, no load
5. The REG1 Start from Last I2C Bit, Full Load
CH1
CH2
CH1
CH2
CH1: VSCL, 2V/div
CH2: VOUT1, 0.5V/div
TIME: 100μs/div
CH1: VOUT1, 0.5V/div
CH2: PWRHLD, 2V/div
TIME: 100μs/div
8. The REG1 (1.2V) Efficiency vs. Load Current
95
7. The REG1 Step Transition Response, Full Load
CH2
85
75
65
55
45
VVP1=3.0V
VVP1=3.6V
VVP1=4.0V
CH3
CH1
1
10
100
1000
CH1: VSCL, 2V/div,
CH2: VSDA, 2V/div,
CH2: VOUT1, 0.5V/div
TIME: 10μs/div
Load Current (mA)
10. The REG1 Load Transition Response
9. The REG2 (1.8V) Efficiency vs. Load Current
95
75
CH2
55
CH1
VVP2=3.0V
VVP2=3.6V
VVP2=4.0V
35
1
10
100
CH1: VOUT1, AC coupled, 10mV/div
CH2: Load Current, 200mA/div
TIME: 400μs/div
Load Current (mA)
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