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Wuxi Youda electronics
Wuxi Youda electronics


YD1117

LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS


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YOUDA INTEGRATED CIRCUIT
YD1117
LOW DROP FIXED AND ADJUSTABLE
POSITIVE VOLTAGE REGULATORS—YD1117
DESCRIPTION
The YD1117 is a LOW DROP Voltage Regulator able to provide up to 800mA of Output Current, available
even in adjustable version(Vref=1.25V).
FEATURES
*Low dropout voltage (1V typ)
*2.85V Device performances are suitable for scsi-2 active termination
*Output current up to 800mA
*Fixed output voltage of :2.5V, 2.85V, 3.0V, 3.3V, 5.0V
*Adjustable version availability (Vref=1.25V)
*Internal current and thermal limit
*Available in ±1%(at 25)and 2% in all temperature range
*Supply voltage rejection : 75dB(TYP)
BLOCK DIAGRAM
VOLTAGE
GENERATOR
CURRENT
GENERATOR
+
-
3
THERMAL
COMPENSATION
THERMAL
PROTECTION
2
1
WuXi YouDa Electronics Co., Ltd
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: 86-510-85205117 86-510-85205106 Fax: 86-510-85205110 Website: www.e-youda.com
SHENZHEN OFFICE Tel86-755-83740369
Fax86-755-83741418
Ver 5.0
1 of 6
2006-7-10



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YOUDA INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Tamb=25)
PARAMETER
DC Input Voltage
Power Dissipation
Storage Temperature
Range
Operating Junction
Temperature Range
SYMBOL
VIN
Ptot
Tsty
Top
VALUE
15
12
-40 to 150
0 to 125
YD1117
UNIT
V
W
ELECTRICAL CHARACTERISTICS FOR YD1117#25
(refer to the test circuits, Tj=0 to 125, Co=10μF Unless otherwise specified)
PARAMETER
Output Voltage
SYMBOL
TEST CONDITIONS
MIN
Vo Vin=4.5V, Io=10mA, Tj=252.475
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Long Term Stability
Vo
Vo
Vo
Vo
Vo
Io=0 to 800mA, Vin=3.9 to 10V
Vin=3.9 to 10V, Io=0mA
Vin=3.9V, Io=0 to 800mA
2.45
1000hrs Tj=125
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
Vin
Id
Io
eN
SVR
Io=100mA
Vin10V
Vin=7.5V, Tj=25
B=10Hz to 10KHz, Tj=25
Io=40mA, f=120Hz, Tj=25
Vin=5.85V, Vripple=1Vpp
800
60
Io=100mA
Dropout Voltage
Vd
Io=500mA
Thermal Regulation
Io=800mA
Tamb=2530ms Pulse
TYP
2.5
1
1
0.5
0.3
5
950
100
75
1
1.05
1.10
0.01
MAX
2.525
2.55
6
10
15
10
1200
UNIT
V
V
mV
mV
%
%
V
mA
mA
μV
dB
1.1 V
1.15 V
1.2 V
0.1 %/W
ELECTRICAL CHARACTERISTICS FOR YD1117#28
(refer to the test circuits, Tj=0 to 125, Co=10μF Unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Output Voltage
Vo Vin=4.85V, Io=10mA, Tj=252.82
Output Voltage
Vo
Io=0 to 800mA,
Vin=4.25 to 10V
2.79
Line Regulation
Vo
Vin=4.25 to 10V, Io=0mA
Load Regulation
Vo
Vin=4.25V, Io=0 to 800mA
Temperature Stability
Vo
Long Term Stability
Vo
1000hrs Tj=125
TYP
2.85
1
1
0.5
0.3
MAX UNIT
2.88 V
2.91 V
6 mV
10 mV
%
%
WuXi YouDa Electronics Co., Ltd
2 of 6
Website: www.e-youda.com



Part Number YD1117
Description LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
Maker Wuxi Youda electronics - Wuxi Youda electronics
Total Page 6 Pages
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