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SR2803G-S08-R 数据表(PDF) 4 Page - Unisonic Technologies

部件名 SR2803G-S08-R
功能描述  330KHZ, 3A SYNCHRONOUS BUCK CONTROLLER
PDF  6 Pages
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制造商  UTC [Unisonic Technologies]
网页  http://www.utc-ic.com
标志 UTC - Unisonic Technologies

SR2803G-S08-R 数据表(HTML) 4 Page - Unisonic Technologies

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SR2803
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 6
www.unisonic.com.tw
QW-R103-056.A
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified )
PARAMETER
SYMBOL
RATINGS
UNIT
VCC Pin Voltage
VCC
VSS -0.3 ~VSS +28
V
Feedback Pin Voltage
VFB
VSS -0.3 ~ VCC
V
ON/OFF Pin Voltage
VEN
VSS - 0.3 ~ VCC+ 0.3
V
Switch Pin Voltage
VSW
VSS - 0.3 ~ VCC+ 0.3
V
Operating Supply Voltage
VOP
+4 ~ 28
V
Power Dissipation
PD
Internally limited
Storage Temperature
TSTG
-40 ~ +150
°C
Operating Temperature
TOPR
-20 ~ +125
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
Junction to Ambient
θJA
70
°С/W
Junction to Case
θJC
25
°С/W
Note: θJA is measured with the PCB copper area(need connect to SW pins) of approximately 1 in2(Multi-layer)
ELECTRICAL CHARACTERISTICS (VIN = 12V, Ta= 25°C, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
Feedback Voltage
VFB
IOUT=0.2A
0.784 0.80 0.816
V
Feedback Bias Current
IFB(BIAS)
IOUT=0.1A
0.1
0.5
μA
Switch Current
ISW
Pear current, No outside circuit
VFB=0V Force driver on
3.5
A
Standby Current
ISTN-BY
VEN=0V No outside circuit VFB=0V
Force driver on
2
10
μA
Quiescent Current
IQ
VFB=1.2V Force driver off
3
5
mA
Oscillation Frequency
fOSC
Measure waveform at SW Pin
260
330
400
KHz
Frequency of Current Limit or Short
Circuit Protect
fOSC1
Measure waveform at SW Pin
20
40
KHz
Line Regulation
OUT
OUT
V
V
Δ
VCC=5V-28V, IOUT=0.2A
0.4
%
Load Regulation
OUT
OUT
V
V
Δ
IOUT=0.2A-3A
0.3
%
EN Pin Input Current
ISH
VEN=2.5V(ON)
5
μA
ISL
VEN=0.3V(OFF)
0
μA
Soft-Start Time
TSS
0.3
3.5
8
ms
Internal MOSFET RDS(ON)
RDS(ON)
High-side Switch, ISW=1A
70
mΩ
low-side Switch, ISW=1A
50
mΩ
EN Pin Logic input threshold voltage
VSH
High(regulator ON)
1.6
V
VSL
Low(regulator OFF)
0.8
V
Thermal shutdown Temp
TSD
150
°C



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