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UD05121G-AF5-R Datasheet(PDF) 3 Page - Unisonic Technologies

Part # UD05121G-AF5-R
Description  Build-in soft start function
PDF  7 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UD05121G-AF5-R Datasheet(HTML) 3 Page - Unisonic Technologies

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UD05121
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
3 of 7
www.unisonic.com.tw
QW-R221-028.E
ABSOLUTE MAXIMUM RATING (TA= 25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
VCC Pin Voltage
VIN
-0.3~7
V
SW Pin Voltage
VSW
-0.7 ~ VIN+0.3
V
EN, FB Pins Voltage
-0.3 ~ VIN+0.3
V
Continuous Power Dissipation
PD
370
mW
Junction Temperature
TJ
-40~125
°C
Storage Temperature
TSTG
-65~150
°C
Notes: 1. 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.
2. Stresses exceed those ratings may damage the device.
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
RATINGS
UNIT
Junction to Ambient
θJA
270
°C/W
Junction to Case
θJC
85
°C/W
Note: θJA is measured with the PCB copper are of approximately 1 in
2 (Multi-layer).
ELECTRICAL CHARACTERISTICS (VIN=5V, VEN=5V, VOUT=1.8V, TA= 25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage
VIN
2.5
5.5
V
Input UVLO
UVLO
IOUT=0A
1.8
2.2
2.5
V
Input OVLO
OVLO
IOUT=0A
6.0
V
Quiescent Current
ICCQ
VFB=1V
250
350
μA
Shutdown Current
ISD
VEN=0V
0.1
1
μA
FB Pin Voltage
VFB
0.588
0.6
0.612
V
FB Pin Current
IFB
±50
nA
Load Regulation
0A<IOUT<1.2A
0.6
%
Load Regulation
2.5A<VIN<5.5V
0.3
%/V
EN Pin Voltage High
VENH
1.5
V
EN Pin Voltage Low
VENL
0.4
V
EN Pin Leakage Current
VEN=3V
0.1
1
uA
Switching Frequency
FOSC
1.1
1.5
1.9
MHz
Current Limit
CL
VIN=3V,
VFB=0.5V or VOUT=90%,
Duty Cycle<35%
1.4
1.7
A
Switching Maximum Duty
Dmax
100
%
Minimum Duty
Dmin
0
%
P-Switch RDS(ON)
RDS(ON)-P
300
mΩ
N-Switch RDS(ON
RDS(ON)-N
200
mΩ
Low Side Discharger
60
Ω
Thermal Shutdown
TSD
160
°C
Thermal Shutdown Protection hysteresis
TSH
30
°C



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