ADP1873ARMZ-0.3-R7 Analog Devices Inc, ADP1873ARMZ-0.3-R7 Datasheet - Page 14

• Manufacturer Part Number: ADP1873ARMZ-0.3-R7
• Description: 300kHz, Light Load Eff Enabled
• Manufacturer: Analog Devices Inc

Specifications of ADP1873ARMZ-0.3-R7

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 300kHz
• Duty Cycle: 84%
• Voltage - Supply: 2.75 V ~ 20 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Frequency-max: 300kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADP1873ARMZ-0.3-R7TR

ADP1872/ADP1873
Figure 47. Positive Step During Heavy Load Transient Behavior—PSM Enabled,
Figure 48. Negative Step During Heavy Load Transient Behavior—PSM Enabled,
2
1
3
4
2
1
3
4
2
1
3
4
CH1 10A Ω
CH3 20V
CH1 10A Ω
CH3 20V
CH1 10A Ω
CH3 20V
20A POSITIVE STEP
Figure 46. Load Transient Step—PSM Enabled, 20 A
20 A, V
LOW SIDE
20 A (See Figure 91 Application Circuit)
OUT
(See Figure 91 Application Circuit)
CH2 200mV
CH4 5V
CH2 200mV
CH4 5V
= 1.8 V (See Figure 91 Application Circuit)
CH2 200mV
CH4 5V
B
B
B
W
W
W
M20µs
M20µs
SW NODE
T
T
M2ms
T
OUTPUT VOLTAGE
30.6%
48.2%
OUTPUT VOLTAGE
20A STEP
75.6%
20A NEGATIVE STEP
OUTPUT VOLTAGE
LOW SIDE
SW NODE
A CH1
A CH1
A CH1
SW NODE
LOW SIDE
3.40A
3.40A
3.40A
Rev. A | Page 14 of 40
Figure 50. Positive Step During Heavy Load Transient Behavior—Forced PWM
Figure 51. Negative Step During Heavy Load Transient Behavior—Forced PWM
at Light Load, 20 A, V
Figure 49. Load Transient Step—Forced PWM at Light Load, 20 A
4
1
2
3
4
1
2
3
2
1
3
4
CH1 10A Ω
CH3 20V
CH1 10A Ω
CH3 20V
CH1 10A Ω
CH3 20V
20A POSITIVE STEP
at Light Load, 20 A (See Figure 91 Application Circuit)
SW NODE
OUTPUT VOLTAGE
SW NODE
LOW
SIDE
(See Figure 91 Application Circuit)
CH2 5V
CH4 200mV
CH2 200mV
CH4 5V
CH2 5V
CH4 200mV
OUTPUT VOLTAGE
OUT
20A STEP
LOW SIDE
= 1.8 V (See Figure 91 Application Circuit)
B
B
B
W
W
W
M20µs
M10µs
T
T
M2ms
T
20A NEGATIVE STEP
OUTPUT VOLTAGE
43.8%
23.8%
15.6%
A CH1
A CH1
A CH1
LOW SIDE
SW NODE
6.20A
6.20A
5.60A