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参数资料
| 型号： | IRU1117CS |
| 厂商： | International Rectifier |
| 英文描述： | 800mA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR |
| 中文描述： | 800mA的低压差型正，可调式稳压器 |
| 文件页数： | 3/10页 |
| 文件大小： | 68K |
| 代理商： | IRU1117CS |
IRU1117
2
Rev. 1.8
02/04/03
www.irf.com
ABSOLUTE MAXIMUM RATINGS
Input Voltage (VIN) ....................................................
7V
Power Dissipation .....................................................
Internally Limited
Storage Temperature Range ......................................
-65°C To 150°C
Operating Junction Temperature Range .....................
0°C To 150°C
PACKAGE INFORMATION
2-PIN PLASTIC TO-252 (D-Pak)
2-PIN ULTRA THIN-PAKTM (P)
8-PIN PLASTIC SOIC (S)
3-PIN PLASTIC SOT-223 (Y)
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over CIN=1
mF, COUT=10mF, and TJ=0 to 1508C.
Typical values refer to TJ=25
8C.
Note 1: Low duty cycle pulse testing with Kelvin con-
nections is required in order to maintain accurate data.
Note 2: Dropout voltage is defined as the minimum dif-
ferential voltage between VIN and VOUT required to main-
tain regulation at VOUT. It is measured when the output
voltage drops 1% below its nominal value.
Note 3: Minimum load current is defined as the mini-
mum current required at the output in order for the out-
put voltage to maintain regulation. Typically, the resistor
dividers are selected such that it automatically main-
tains this current. Typically, the values of the resistors
used to build the voltage divider are selected to ensure
that minimum load current is maintained.
Adj
1
3
FRONT VIEW
Tab is
VOUT
VIN
Adj
VOUT
VIN
Tab is
VOUT
3
1
2
TOP VIEW
Adj
FRONT VIEW
1
3
Tab is
VOUT
VIN
Adj
NC
VIN
VOUT
4
3
2
1
5
6
7
8
TOP VIEW
VOUT
Reference Voltage
Line Regulation
Load Regulation (Note 1)
Dropout Voltage (Note 2)
Current Limit
Minimum Load Current (Note 3)
Thermal Regulation
Ripple Rejection
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
Long Term Stability
RMS Output Noise
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
Io=10mA, TJ=25
8C, (VIN-Vo)=1.5V
Io=10mA, (VIN-Vo)=1.5V
Io=10mA, 1.3V<(VIN-Vo)<7V
VIN=3.3V, VADJ=0, 10mA<Io<800mA
Io=1A
Io=800mA, Note 2
VIN=3.3V,
DVo=100mV
VIN=3.3V, VADJ=0V
30ms Pulse, VIN-Vo=3V, Io=800mA
f=120Hz, Co=25
mF Tantalum,
Io=0.5A, VIN-Vo=3V
Io=10mA, VIN-Vo=1.5V, TJ=25
8C,
Io=10mA, VIN-Vo=1.5V
Io=10mA, VIN-Vo=1.5V, TJ=25
8C
VIN=3.3V, VADJ=0V, Io=10mA
TJ=125
8C, 1000Hrs
TJ=25
°C, 10Hz<f<10KHz
1.238
1.225
1.1
60
1.250
1.2
1.1
5
0.01
70
55
0.2
0.5
0.3
0.003
1.262
1.275
0.2
0.4
1.3
1.2
10
0.02
120
5
1
V
%
V
A
mA
%/W
dB
mA
%
%VO
VREF
DVO
IADJ
θJA=70°C/W for 0.5" Sq pad
θJA=55°C/W for 1" Sq pad
θJA=90°C/W for 0.4" Sq pad
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