ADP1873ARMZ-0.3-R7 Analog Devices Inc, ADP1873ARMZ-0.3-R7 Datasheet - Page 3

• 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

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 T
Table 1.
Parameter
POWER SUPPLY CHARACTERISTICS
SOFT START
ERROR AMPLIFER
CURRENT-SENSE AMPLIFIER GAIN
SWITCHING FREQUENCY
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)
ADP1872ARMZ-0.3/
ADP1872ARMZ-0.6/
ADP1872ARMZ-1.0/
Value from DRVL to PGND
ADP1873ARMZ-0.3 (300 kHz)
On-Time
Minimum On-Time
Minimum Off-Time
ADP1873ARMZ-0.6 (600 kHz)
On-Time
Minimum On-Time
Minimum Off-Time
ADP1873ARMZ-1.0 (1.0 MHz)
On-Time
Minimum On-Time
Minimum Off-Time
Symbol
VIN
VDD
I
I
UVLO
V
G
I
Q_DD
DD, SD
FB, LEAK
FB
M
+ I
+ I
Q_BST
BST, SD
Conditions
ADP1872ARMZ-0.3/ADP1873ARMZ-0.3 (300 kHz)
ADP1872ARMZ-0.6/ADP1873ARMZ-0.6 (600 kHz)
ADP1872ARMZ-1.0/ADP1873ARMZ-1.0 (1.0 MHz)
C
ADP1872ARMZ-0.3/ADP1873ARMZ-0.3 (300 kHz)
ADP1872ARMZ-0.6/ADP1873ARMZ-0.6 (600 kHz)
ADP1872ARMZ-1.0/ADP1873ARMZ-1.0 (1.0 MHz)
FB = 1.5 V, no switching
COMP/EN < 285 mV
Rising VDD (See Figure 34 for temperature variation)
Falling VDD from operational state
See Figure 57
T
T
T
FB = 0.6 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
VIN = 5 V, V
VIN = 20 V
84% duty cycle (maximum)
VIN = 5 V, V
VIN = 20 V, V
65% duty cycle (maximum)
VIN = 5 V, V
VIN = 20 V
45% duty cycle (maximum)
J
J
J
IN
= 25°C
= −40°C to +85°C
= −40°C to +125°C
= 1 μF to PGND, C
Rev. A | Page 3 of 40
J
OUT
OUT
OUT
= −40°C to +125°C, unless otherwise specified.
OUT
= 2 V, T
= 2 V, T
= 2 V, T
= 0.8 V
IN
J
J
J
= 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
595.5
594.2
300
2.7
5.5
11
22
1120
500
285
ADP1872/ADP1873
Typ
12
12
12
5
5
5
1.1
140
2.65
190
3.0
600
600
600
515
1
3
6
12
24
300
1200
145
320
600
520
82
320
1.0
312
60
320
Max
20
20
20
5.5
5.5
5.5
215
605.4
606.5
730
50
3.3
6.5
13
26
1280
190
385
580
110
385
340
85
385
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