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DR73-4R7-R 数据表(PDF) 4 Page - Skyworks Solutions Inc.

部件名 DR73-4R7-R
功能描述  12V, 1.5A Step-Down DC/DC Converter
PDF  19 Pages
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制造商  SKYWORKS [Skyworks Solutions Inc.]
网页  http://www.skyworksinc.com
标志 SKYWORKS - Skyworks Solutions Inc.

DR73-4R7-R 数据表(HTML) 4 Page - Skyworks Solutions Inc.

  DR73-4R7-R Datasheet HTML 1Page - Skyworks Solutions Inc. DR73-4R7-R Datasheet HTML 2Page - Skyworks Solutions Inc. DR73-4R7-R Datasheet HTML 3Page - Skyworks Solutions Inc. DR73-4R7-R Datasheet HTML 4Page - Skyworks Solutions Inc. DR73-4R7-R Datasheet HTML 5Page - Skyworks Solutions Inc. DR73-4R7-R Datasheet HTML 6Page - Skyworks Solutions Inc. DR73-4R7-R Datasheet HTML 7Page - Skyworks Solutions Inc. DR73-4R7-R Datasheet HTML 8Page - Skyworks Solutions Inc. DR73-4R7-R Datasheet HTML 9Page - Skyworks Solutions Inc. Next Button
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201998B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 20, 2013
AAT1162
12V, 1.5A Step-Down DC/DC Converter
DATA SHEET
Electrical Characteristics1
4.0V < VIN < 13.2V. CIN = COUT = 22μF; L = 2.2 or 3.8μH, TA = -40°C to +85°C, unless otherwise noted. Typical values
are at TA = 25°C.
Symbol Description
Conditions
Min
Typ
Max Units
VIN
Input Voltage Range
4.0
13.2
V
VUVLO
Input Under-Voltage Lockout
Rising
4.0
V
Hysteresis
0.3
IQ
Supply Current
No Load
150
300
μA
ISHDN
Shutdown Current
VEN = GND
1
μA
VOUT
Output Voltage Range
0.6
0.94
VIN
V
VOUT
Output Voltage Accuracy
IOUT = 0A to 1.5A
-2.5
2.5
%
VOUT/
VOUT/VIN
Line Regulation
VIN = 4.5V to 13.2V
0.023 0.100
%/V
VOUT/
IOUT
Load Regulation
VIN = 12V, VOUT = 5V, IOUT = 0A to 1.5A
0.4
%
VFB
Feedback Reference Voltage (adjustable version) No Load, TA = 25°C
0.59
0.60
0.61
V
IFBLEAK
FB Leakage Current
VOUT = 1.2V
Adjustable Version
0.2
μA
Fixed Version
2
FOSC
PWM Oscillator Frequency
0.6
0.8
1
MHz
Foldback Frequency
200
kHz
DC
Maximum Duty Cycle
94
%
TON
Minimum Turn-On Time
100
ns
TS
Soft-Start Time
2ms
RDS(ON)H
P-Channel On Resistance
VIN = 12V
0.12
VIN = 6V
0.15
RDS(ON)L
N-Channel On Resistance
VIN = 12V
0.06
VIN = 6V
0.08
Efficiency
VIN = 12V, VOUT = 5V, IOUT = 1.5A
90
%
ILIM
PMOS Current Limit
4.0
6.0
A
ILXLEAK
LX Leakage Current
VIN = 13.2V, VLX = 0 to VIN
1
μA
TSD
Over-Temperature Shutdown Threshold
140
°C
THYS
Over-Temperature Shutdown Hysteresis
25
°C
VIL
EN Logic Low Input Threshold
0.4
V
VIH
EN Logic High Input Threshold
1.4
V
IEN
EN Input Current
VEN = 0V, VEN = 13.2V
-1.0
1.0
μA
1. The AAT1162 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.



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