B1077AS-4R7N AD [Analog Devices], B1077AS-4R7N Datasheet - Page 9

• Manufacturer Part Number: B1077AS-4R7N
• Description: 1.2 A, 20 V, 700 kHz/1.4 MHz, Nonsynchronous Step-Down Regulator
• Manufacturer: AD [Analog Devices]

Figure 23. MOSFET R
1.30
1.25
1.20
1.15
1.10
1.05
1.00
900
800
700
600
500
400
300
200
100
700
660
620
580
540
500
0
–50
–50
2
Figure 24. Enable Threshold vs. Temperature
–20
–20
5
Figure 22. Quiescent Current vs. V
DS(ON)
10
10
vs. Temperature (Pin-to-Pin Measurements)
8
TEMPERATURE (°C)
TEMPERATURE (°C)
V
IN
40
11
40
(V)
70
70
14
IN
T
T
T
100
J
J
J
100
17
RISING
FALLING
= −40°C
= +25°C
= +125°C
V
V
V
GS
GS
GS
= 5V
= 4V
= 3V
130
130
20
Rev. 0 | Page 9 of 28
Figure 27. Steady State at Light Load, f
1
4
2
Figure 26. Steady State at Heavy Load, f
1
4
2
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
–50
CH1
CH1
5mV
20mV
Figure 25. UVLO Threshold vs. Temperature
–20
B
W
B
W
CH2 5V
CH4
CH2 5V
CH4
10
500mA Ω
200mA Ω
TEMPERATURE (°C)
B
V
W
SW
B
OUT
IL
W
B
40
B
W
W
SW
M400ns
M10µs
ADP2300/ADP2301
V
IL
OUT
SW
SW
= 1.4 MHz, I
70
= 1.4 MHz, I
A CH2
A CH2
100
OUT
RISING
FALLING
OUT
= 40 mA
7.4V
= 1 A
8V
130