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P1786G-S08-R データシート(PDF) 4 Page - Unisonic Technologies

部品番号 P1786G-S08-R
部品情報  PWM CONTROL 3A STEP-DOWN CONVERTER
PDF  8 Pages
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メーカー  UTC [Unisonic Technologies]
ホームページ  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

P1786G-S08-R データシート(HTML) 4 Page - Unisonic Technologies

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P1786
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 8
www.unisonic.com.tw
QW-R103-038.B
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
UNIT
VCC Pin Voltage
VCC
VSS - 0.3 ~ VSS + 25
V
Feedback Pin Voltage
VFB
VSS - 0.3 ~ VCC
V
EN Pin Voltage
VEN
VSS - 0.3 ~ VIN + 0.3
V
Switch Pin Voltage
VOUT
VSS - 0.3 ~ VIN + 0.3
V
Power Dissipation
PD
Internally limited
Operating Temperature
TOPR
-20 ~ +125
°C
Storage Temperature
TSTG
-40 ~ +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
MIN
TYP
MAX
UNIT
Junction to Ambient
θJA
65
°C/W
ELECTRICAL CHARACTERISTICS (VIN = 12V, Ta=25°C, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNIT
Input Voltage
VIN
4
23
V
Feedback Voltage
VFB
IOUT=0.1A
0.784 0.8 0.816
V
Feedback Bias Current
IFB(BIAS)
IOUT=0.1A
0.1
0.5
μA
Switch Current
ISC
3.5
A
Standby Current
ISTN-BY
VEN =0V
10
μA
Line Regulation
OUT
OUT
V
V
Δ
VIN = 5V~23V, IOUT=0.2A
1
2
%
Load Regulation
OUT
OUT
V
V
Δ
IOUT = 0.1 to 3A
0.2
0.5
%
Oscillation Frequency
fOSC
Measure waveform at SW pin
240
300
360
KHz
Frequency of Current Limit or Short
Circuit Protect
fOSC1
Measure waveform at SW pin
10
30
60
KHz
VSH
Evaluate oscillation at SW pin
2.0
V
EN Pin Input Voltage
VSL
Evaluate oscillation stop
at SW pin
0.8
V
ISH
20
μA
EN Pin Input Leakage Current
ISL
-10
μA
OCSET Pin Bias Current
IOCSET
75
90
105
μA
Soft-Start Time
TSS
0.3
2
5
ms
VIN=5V, VFB=0V
110
150
mΩ
Internal MOSFET RDS(ON)
RDS(ON)
VIN=12V, VFB=0V
70
100
mΩ
Efficiency
η
VIN = 12V, VOUT = 5V, IOUT = 3A
91
%



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