ADP1883 Analog Devices, ADP1883 Datasheet - Page 3

• Manufacturer Part Number: ADP1883
• Description: Synchronous Current-Mode Buck Controller with Constant On-time, 0.8 V Reference Voltage, and Power Saving Mode
• Manufacturer: Analog Devices

SPECIFICATIONS
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). V
V
Table 1.
Parameter
POWER SUPPLY CHARACTERISTICS
SOFT START
ERROR AMPLIFIER
CURRENT-SENSE AMPLIFIER GAIN
SWITCHING FREQUENCY
IN
High Input Voltage Range
Low Input Voltage Range
Quiescent Current
Shutdown Current
Undervoltage Lockout
UVLO Hysteresis
Soft Start Period
FB Regulation Voltage
Transconductance
FB Input Leakage Current
Programming Resistor (RES)
ADP1882ARMZ-0.3/
ADP1882ARMZ-0.6/
ADP1882ARMZ-1.0/
= 13 V. The specifications are valid for T
Value from DRVL to PGND
ADP1883ARMZ-0.3 (300 kHz)
On Time
Minimum On Time
Minimum Off Time
ADP1883ARMZ-0.6 (600 kHz)
Minimum On Time
Minimum Off Time
ADP1883ARMZ-1.0 (1.0 MHz)
Minimum On Time
Minimum Off Time
On Time
On Time
Symbol
V
V
I
I
UVLO
V
G
I
Q_DD
DD, SD
FB, LEAK
IN
DD
FB
M
+ I
+ I
J
Q_BST
= −40°C to +125°C, unless otherwise specified.
BST, SD
Conditions
ADP1882ARMZ-0.3/ADP1883ARMZ-0.3 (300 kHz)
ADP1882ARMZ-0.6/ADP1883ARMZ-0.6 (600 kHz)
ADP1882ARMZ-1.0/ADP1883ARMZ-1.0 (1.0 MHz)
C
ADP1882ARMZ-0.3/ADP1883ARMZ-0.3 (300 kHz)
ADP1882ARMZ-0.6/ADP1883ARMZ-0.6 (600 kHz)
ADP1882ARMZ-1.0/ADP1883ARMZ-1.0 (1.0 MHz)
FB = 1.5 V, no switching
COMP/EN < 285 mV
Rising V
Falling V
See Figure 58
T
T
T
FB = 0.8 V, COMP/EN = released
RES = 47 kΩ ± 1%
RES = 22 kΩ ± 1%
RES = none
RES = 100 kΩ ± 1%
Typical values measured at 50% time points with
0 nF at DRVH and DRVL; maximum values are
guaranteed by bench evaluation
V
V
84% duty cycle (maximum)
V
V
65% duty cycle (maximum)
V
V
45% duty cycle (maximum)
J
J
J
IN
IN
IN
IN
IN
IN
IN
= 25°C
= −40°C to +85°C
= −40°C to +125°C
= 1 μF to PGND, C
= 5 V, V
= 20 V
= 5 V, V
= 20 V, V
= 5 V, V
= 20 V
DD
DD
Rev. 0 | Page 3 of 40
(see Figure 35 for temperature variation)
OUT
OUT
OUT
from operational state
OUT
= 2 V, T
= 2 V, T
= 2 V, T
= 0.8 V
J
J
J
IN
= 25°C
= 25°C
= 25°C
= 0.22 μF to GND
1
Min
2.75
2.75
3.0
2.75
2.75
3.0
795.3
792.8
300
2.98
6
24.1
12.1
1115
490
280
ADP1882/ADP1883
DD
= 5 V, BST − SW = 5 V,
Typ
12
12
12
5
5
5
1.1
140
2.65
190
3.0
800
800
800
520
1
3.4
6.6
26.7
13.4
300
1200
145
340
600
540
82
340
1.0
312
60
340
Max
20
20
20
5.5
5.5
5.5
215
805.5
808.0
730
50
3.7
7.4
29.3
14.7
1285
190
400
585
110
400
340
85
400
Unit
V
V
V
V
V
V
mA
μA
V
mV
ms
mV
mV
mV
μs
nA
V/V
V/V
V/V
V/V
kHz
ns
ns
ns
kHz
ns
ns
ns
MHz
ns
ns
ns