ADP1873ARMZ-0.3-R7 Analog Devices Inc, ADP1873ARMZ-0.3-R7 Datasheet - Page 16

• 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 59. Upper Side Driver Rising and Lower Side Falling Edge Waveforms
Figure 60. Upper Side Driver Falling and Lower Side Rising Edge Waveforms
M
M
M
4
3
2
4
3
2
4
3
2
CH3 5V
MATH 2V 40ns
CH3 5V
MATH 2V 40ns
CH3 5V
MATH 2V 20ns
LOW SIDE
HS MINUS
SW
LOW SIDE
T
SW NODE
HS MINUS
SW
A
Figure 58. Output Drivers and SW Node Waveforms
HIGH SIDE
HS MINUS
SW
22ns (
= 25°C
Q
Q
(C
(C
TOTAL
TOTAL
18ns (
GATE
GATE
t
pdh
= 27 nC (V
= 27 nC (V
= 4.3 nF (Upper/Lower Side MOSFET),
= 4.3 nF (Upper/Lower Side MOSFET),
, DRVH
t
r
, DRVL
CH2 5V
CH4 2V
CH2 5V
CH4 2V
CH2 5V
CH4 2V
)
)
GS
GS
T
= 4.4 V (Q1), V
= 4.4 V (Q1), V
16ns (
11ns (
A
= 25°C
24ns (
M40ns
M40ns
M20ns
T
T
T
t
t
f
f
, DRVL
, DRVH
29.0%
29.0%
39.2%
t
pdh
25ns (
)
)
, DRVL
HIGH SIDE
GS
GS
t
r
= 5 V (Q3))
= 5 V (Q3))
, DRVH
HIGH SIDE
SW NODE
A CH2
A CH2
)
A CH2
LOW SIDE
SW NODE
)
T
A
= 25°C
4.20V
4.20V
4.20V
Rev. A | Page 16 of 40
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
570
550
530
510
490
470
450
430
680
630
580
530
480
430
380
330
2.7
–40
2.7
Figure 61. Transconductance (G
Figure 63. Quiescent Current vs. V
3.0
–20
Figure 62. Transconductance (G
3.1
3.3
0
3.5
3.6
TEMPERATURE (°C)
20
3.9
3.9
+125°C
V
+25°C
–40°C
DD
V
40
DD
(V)
4.2
(V)
4.3
M
60
) vs. Temperature
4.5
DD
M
4.7
(VIN = 13 V)
) vs. V
80
4.8
DD
V
V
V
5.1
100
DD
DD
DD
5.1
+125°C
+25°C
–40°C
= 5.5V
= 3.6V
= 2.7V
120
5.4
5.5