参数资料
型号: ADP1882-1.0-EVALZ
厂商: Analog Devices Inc
文件页数: 15/40页
文件大小: 0K
描述: EVAL BOARD FOR ADP1882
标准包装: 1
主要目的: DC/DC,步降
稳压器拓扑结构: 降压
频率 - 开关: 1MHz
板类型: 完全填充
已供物品:
已用 IC / 零件: ADP1882
ADP1882/ADP1883
2
OUTPUT VOLTAGE
OUTPUT VOLTAGE
1
INDUCTOR CURRENT
12A NEGATIVE STEP
1
2
SW NODE
LOW SIDE
4
3
LOW
SW NODE
4
SIDE
3
W M10μs
CH1 10A ?
CH2 200mV
B
A CH1
5.60A
CH1 2V BW CH2 5A ?
M2ms
A CH1
720mV
CH3 20V
CH4 5V
T 23.8%
CH3 10V CH4 5V
T 32.8%
Figure 52. Negative Step During Heavy Load Transient Behavior—Forced PWM
at Light Load, 20 A (See Figure 92 for Applications Circuit)
OUTPUT VOLTAGE
1
INDUCTOR CURRENT
2
1
Figure 55. Start-Up Behavior at Heavy Load, 18 A, 300 kHz
(See Figure 92 for Applications Circuit)
OUTPUT VOLTAGE
4
LOW SIDE
2
4
INDUCTOR CURRENT
LOW SIDE
3
SW NODE
3
SW NODE
CH1 2V BW CH2 5A ?
M4ms
A CH1
920mV
CH1 2V BW CH2 5A ?
M4ms
A CH1
720mV
CH3 10V CH4 5V
T 49.4%
CH3 10V CH4 5V
T 41.6%
Figure 53. Output Short-Circuit Behavior Leading to Hiccup Mode
Figure 56. Power-Down Waveform During Heavy Load
1
OUTPUT VOLTAGE
OUTPUT VOLTAGE
1
INDUCTOR CURRENT
INDUCTOR CURRENT
2
SW NODE
2
SW NODE
3
4
LOW SIDE
3
4
LOW SIDE
CH1 5V BW CH2 10A ?
CH3 10V CH4 5V
M10μs
T 36.2%
A CH2
8.20A
CH1 50mV BW
CH3 10V BW
CH2 5A ?
CH4 5V
M2μs
T 35.8%
A CH2
3.90A
Figure 54. Magnified Waveform During Hiccup Mode
Rev. 0 | Page 15 of 40
Figure 57. Output Voltage Ripple Waveform During PSM Operation
at Light Load, 2 A
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