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P3576L-XX-S08-R 数据表(PDF) 4 Page - Unisonic Technologies

部件名 P3576L-XX-S08-R
功能描述  50KHz, 2A PWM BUCK DC/DC CONVERTER
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

P3576L-XX-S08-R 数据表(HTML) 4 Page - Unisonic Technologies

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P3576
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 6
www.unisonic.com.tw
QW-R103-054.E
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified )
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
+45
V
ON/OFF Pin Input Voltage
VEN
-0.3 ~ 40
V
Feedback Pin Voltage
VFB
-0.3 ~ 12
V
Output Voltage to Ground
VOUT
-0.8
V
Operating Supply Voltage
VOP
+4.5 ~ +40
V
Power Dissipation
PD
Internally Limited
W
Junction Temperature
TJ
+125
°C
Storage Temperature
TSTG
-65 ~ +150
°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
60
°С/W
Junction to Case
θJC
20
°С/W
Note: θJA is measured with the PCB copper area(need connect to SW pins) of approximately 1.5 in
2(Multi-layer).
ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified, VCC=12V for 3.3V, 5V,
adjustable version and VCC=18V for the 12V version. ILOAD=0.2A.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
Quiescent Current
IQ
VFB=12V force driver off
4
8
mA
Feedback Bias Current
ADJ
IFB
VFB=1.3V
-10
-50
nA
Shutdown Supply Current
ISD
EN pin=5V, VCC=40V
100
200
μA
Oscillator Frequency
fOSC
44
50
56
KHz
Oscillator Frequency of
Short Circuit Protect
ADJ
fSCP
VFB<0.5V
25
KHz
Fixed
VOUT <VOUT*40%
25
KHz
Duty Cycle
MAX
DC
VFB=0V force driver ON
100
%
MIN
DC
VFB=12V force driver OFF
0
%
Current Limit
ICL
Pear current, No outside circuit
VFB=0V force driver on
2.5
A
Load Regulation(ΔVOUT /VOUT)
ΔVOUT IOUT=0.2 ~ 2A
0.6
1.2
%
Saturation Voltage
VSAT
IOUT=2A, No outside circuit
VFB=0V force driver on
1.2
1.4
V
SW pin Leakage
Current
SW pin=0V
ISWL
No outside circuit VFB=12V force driver off
-200
μA
SW pin=-0.8V
VCC=40V force driver off
-5
mA
EN pin Logic Input
Threshold Voltage
Low
VIL
regulator ON
1.3
0.6
V
High
VIH
regulator OFF
2.0
1.3
V
EN pin Logic Input Current
IH
VEN=2.5V (OFF)
-0.1
-10
μA
EN pin Input Current
IL
VEN=0.5V (ON)
-0.01
-1
μA
Thermal shutdown Temp
TSD
135
°C
Output Feedback Voltage
ADJ
VFB
ILOAD=0.2A, VOUT programmed for 3.3V
1.193 1.23 1.267
V
3.3V
ILOAD=0.2A
3.20
3.30
3.40
5.0V
ILOAD=0.2A
4.85
5.00
5.15
12V
ILOAD=0.2A
11.64 12.0 12.36
Efficiency
ADJ
η
VCC=12V, ILOAD=2A
79
%
3.3V
VCC=12V, ILOAD=2A
80
5.0V
VCC=12V, ILOAD=2A
84
12V
VCC=15V, ILOAD=2A
90



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