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ADP1882ARMZ-0.3-EVALZ Arkusz danych(PDF) 3 Page - Analog Devices

Numer części ADP1882ARMZ-0.3-EVALZ
Szczegółowy opis  Synchronous Current-Mode with Constant On-Time,PWM Buck Controller
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ADP1882ARMZ-0.3-EVALZ Arkusz danych(HTML) 3 Page - Analog Devices

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ADP1882/ADP1883
Rev. 0 | Page 3 of 40
SPECIFICATIONS
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). VDD = 5 V, BST − SW = 5 V,
VIN = 13 V. The specifications are valid for TJ = −40°C to +125°C, unless otherwise specified.
Table 1.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
POWER SUPPLY CHARACTERISTICS
High Input Voltage Range
VIN
ADP1882ARMZ-0.3/ADP1883ARMZ-0.3 (300 kHz)
2.75
12
20
V
ADP1882ARMZ-0.6/ADP1883ARMZ-0.6 (600 kHz)
2.75
12
20
V
ADP1882ARMZ-1.0/ADP1883ARMZ-1.0 (1.0 MHz)
3.0
12
20
V
Low Input Voltage Range
VDD
CIN = 1 μF to PGND, CIN = 0.22 μF to GND
ADP1882ARMZ-0.3/ADP1883ARMZ-0.3 (300 kHz)
2.75
5
5.5
V
ADP1882ARMZ-0.6/ADP1883ARMZ-0.6 (600 kHz)
2.75
5
5.5
V
ADP1882ARMZ-1.0/ADP1883ARMZ-1.0 (1.0 MHz)
3.0
5
5.5
V
Quiescent Current
IQ_DD + IQ_BST
FB = 1.5 V, no switching
1.1
mA
Shutdown Current
IDD,SD + IBST,SD
COMP/EN < 285 mV
140
215
μA
Undervoltage Lockout
UVLO
Rising VDD (see Figure 35 for temperature variation)
2.65
V
UVLO Hysteresis
Falling VDD from operational state
190
mV
SOFT START
Soft Start Period
See Figure 58
3.0
ms
ERROR AMPLIFIER
FB Regulation Voltage
VFB
TJ = 25°C
800
mV
TJ = −40°C to +85°C
795.3
800
805.5
mV
TJ = −40°C to +125°C
792.8
800
808.0
mV
Transconductance
GM
300
520
730
μs
FB Input Leakage Current
IFB, LEAK
FB = 0.8 V, COMP/EN = released
1
50
nA
CURRENT-SENSE AMPLIFIER GAIN
Programming Resistor (RES)
Value from DRVL to PGND
RES = 47 kΩ ± 1%
2.98
3.4
3.7
V/V
RES = 22 kΩ ± 1%
6
6.6
7.4
V/V
RES = none
24.1
26.7
29.3
V/V
RES = 100 kΩ ± 1%
12.1
13.4
14.7
V/V
SWITCHING FREQUENCY
Typical values measured at 50% time points with
0 nF at DRVH and DRVL; maximum values are
guaranteed by bench evaluation1
ADP1882ARMZ-0.3/
ADP1883ARMZ-0.3 (300 kHz)
300
kHz
On Time
VIN = 5 V, VOUT = 2 V, TJ = 25°C
1115
1200
1285
ns
Minimum On Time
VIN = 20 V
145
190
ns
Minimum Off Time
84% duty cycle (maximum)
340
400
ns
ADP1882ARMZ-0.6/
ADP1883ARMZ-0.6 (600 kHz)
600
kHz
On Time
VIN = 5 V, VOUT = 2 V, TJ = 25°C
490
540
585
ns
Minimum On Time
VIN = 20 V, VOUT = 0.8 V
82
110
ns
Minimum Off Time
65% duty cycle (maximum)
340
400
ns
ADP1882ARMZ-1.0/
ADP1883ARMZ-1.0 (1.0 MHz)
1.0
MHz
On Time
VIN = 5 V, VOUT = 2 V, TJ = 25°C
280
312
340
ns
Minimum On Time
VIN = 20 V
60
85
ns
Minimum Off Time
45% duty cycle (maximum)
340
400
ns


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