ADP5022 Analog Devices, ADP5022 Datasheet - Page 8

• Manufacturer Part Number: ADP5022
• Description: Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO
• Manufacturer: Analog Devices

ADP5022
TYPICAL PERFORMANCE CHARACTERISTICS
VIN1 = VIN2 = VIN3 = VDDA = 5.0 V, T
Figure 4. 3-Channel Start-Up Waveforms, VIN3 Cascaded from VOUT1
VOUT2 = 2.5 V, VIN3 = VOUT2, VOUT3 = 1.2 V, All Channels Unloaded
Figure 5. System Quiescent Current vs. Input Voltage, VOUT1 = 0.8 V,
0.00010
0.00008
0.00006
0.00004
0.00002
1
2
3
4
2
1
3
CH1
CH3 2.00V
CH1 2.00V
CH3 5.00V
Figure 6. Buck1 Startup, VOUT1 = 3.3 V, I
0
2.4
2.00V
T
2.6
VOUT1
VOUT2
VOUT3
VOUT
2.8
SW
EN
I
IN
B W
B W
B W
B W
3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4
CH2 2.00V
CH2
CH4 5.00V
50.0mA Ω
T
B W
B W
B W
V
IN
M 200µs
T
M 40.0µs
T
(V)
45.40%
11.20%
A
OUT1
= 25°C, unless otherwise noted.
A CH1
A CH3
= 10 mA
1.92V
2.2V
Rev. C | Page 8 of 28
Figure 9. Buck1 Load Regulation Across Temperature, VOUT1 = 3.3 V,
3.354
3.334
3.314
3.294
3.274
3.254
3.234
0.10
0.15
0.14
0.13
0.12
0.11
0.09
0.08
0.07
0.06
4
2
1
3
CH1 2.00V
CH3 5.00V
Figure 8. Buck 2 PSM to PWM Transition, VOUT2 = 1.8 V
2.4
0
Figure 7. Buck2 Startup, VOUT2 = 1.8 V, I
T
VOUT
0.1
SW
2.9
EN
I
IN
B W
B W
CH2
CH4 5.00V
PSM TO PWM
50.0mA Ω
3.4
0.2
INPUT VOLTAGE (V)
Auto Mode
I
OUT
PWM TO PSM
3.9
B W
B W
0.3
(A)
M 40.0µs
T
11.20%
4.4
0.4
OUT2
A CH3
= 5 mA
4.9
T
T
T
A
A
A
0.5
= +25°C
= –40°C
= +85°C
2.2V
5.4
0.6