B1077AS-4R7N AD [Analog Devices], B1077AS-4R7N Datasheet - Page 3

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

SPECIFICATIONS
V
Table 1.
Parameter
VIN
FB
SW
OSCILLATOR FREQUENCY
SOFT START TIME
EN
BOOTSTRAP VOLTAGE
THERMAL SHUTDOWN
1
2
Pin-to-pin measurements.
Guaranteed by design.
IN
Voltage Range
Supply Current
Shutdown Current
Undervoltage Lockout Threshold
Regulation Voltage
Bias Current
On Resistance
Peak Current Limit
Minimum On Time
Minimum Off Time
Input Threshold
Input Hysteresis
Pull-Down Current
Threshold
Hysteresis
= 3.3 V, T
J
= −40°C to +125°C for minimum/maximum specifications, and T
1
2
Symbol
V
I
I
UVLO
V
I
V
V
VIN
SHDN
FB
IN
FB
EN
BOOT
Test Conditions
No switching, V
V
V
V
T
T
V
V
ADP2300
ADP2301
ADP2300
ADP2301
ADP2300
ADP2301
No switching, V
J
J
EN
IN
IN
BST
BST
= 0°C to +125°C
= −40°C to +125°C
rising
falling
= 0 V, V
− V
− V
SW
SW
= 5 V, I
= 5 V, V
IN
Rev. 0 | Page 3 of 28
= 12 V
IN
IN
SW
IN
= 12 V
= 12 V
= 150 mA
= 12 V
A
= 25°C for typical specifications, unless otherwise noted.
Min
3
2.15
0.788
0.784
1.5
0.5
1.0
1.13
Typ
640
18
2.80
2.40
0.800
0.800
0.01
440
1.9
100
145
70
0.7
1.4
1460
730
1.2
100
1.2
5.0
140
15
Max
20
800
35
2.95
0.812
0.816
0.1
700
2.5
135
190
120
0.9
1.75
1.27
ADP2300/ADP2301
Unit
V
μA
μA
V
V
V
μA
mΩ
A
ns
ns
ns
MHz
MHz
μs
μs
V
mV
μA
V
°C
°C
V