ADP1873ARMZ-0.3-R7 Analog Devices Inc, ADP1873ARMZ-0.3-R7 Datasheet - Page 38

• 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
TYPICAL APPLICATION CIRCUITS
DUAL-INPUT, 300 kHz HIGH CURRENT APPLICATION CIRCUIT
SINGLE-INPUT, 600 kHz APPLICATION CIRCUIT
LOW VOLTAGE INPUT
V
27pF
OUT
V
V
C
57pF
DD
OUT
F
0.1µF
R1 47.5kΩ
C
= 5.0V
F
0.1µF
C2
R1 30kΩ
C2
Figure 89. Application Circuit for 12 V Input, 1.8 V Output, 15 A, 300 kHz (Q2/Q4 No Connect).
Figure 90. Application Circuit for 5.5 V Input, 2.5 V Output, 15 A, 600 kHz (Q2/Q4 No Connect)
15kΩ
JP1
C
271pF
R
47kΩ
15kΩ
R2
1µF
C
C
JP1
C1
C
571pF
R
47kΩ
R2
1µF
C
C
C1
1
2
3
4
5
1
2
3
4
5
VIN
COMP/EN
FB
GND
VDD
VIN
COMP/EN
FB
GND
VDD
ADP1872/
ADP1873
ADP1872/
ADP1873
DRVH
PGND
DRVL
BST
DRVH
PGND
DRVL
SW
BST
SW
10
9
8
7
6
100kΩ
10
9
8
7
6
C12
100nF
Rev. A | Page 38 of 40
100kΩ
R5
C12
100nF
HIGH VOLTAGE INPUT
R5
HIGH VOLTAGE INPUT
VIN = 5.5V
Q1
Q3
VIN = 12V
Q1
Q3
Q2
Q4
Q2
Q4
MURATA: (HIGH VOLTAGE INPUT CAPACITORS)
PANASONIC: (OUTPUT CAPACITORS)
INFINEON MOSFETs:
WURTH INDUCTORS:
22µF, 25V, X7R, 1210 GRM32ER71E226KE15 L
180µF (SP-SERIES) 4V, 10mΩ EEFUE0G181XR
BSC042N03MS G (LOWER-SIDE)
BSC080N03MS G (UPPER-SIDE)
0.47µH, 0.8mΩ, 50A 744355147
MURATA: (HIGH VOLTAGE INPUT CAPACITORS)
PANASONIC: (OUTPUT CAPACITORS)
INFINEON MOSFETs:
WURTH INDUCTORS:
R6
2Ω
C13
1.5nF
22µF, 25V, X7R, 1210 GRM32ER71E226KE15 L
270µF (SP-SERIES) 4V, 7mΩ EEFUE0G271LR
BSC042N03MS G (LOWER-SIDE)
BSC080N03MS G (UPPER-SIDE)
1µH, 3.3mΩ, 20A 7443552100
22µF
R6
2Ω
C13
1.5nF
C3
22µF
0.47µH
C3
1.0µH
270µF
22µF
C20
C4
22µF
C4
180µF
+
C20
270µF
22µF
C21
C5
22µF
V
C5
+
OUT
V
180µF
+
OUT
22µF
C21
270µF
= 2.5V, 15A
C6
22µF
C22
= 1.8V, 15A
C6
+
180µF
+
22µF
C22
270µF
C7
22µF
C23
C7
+
+