参数资料
| 型号： | IRU1261CPTR |
| 厂商： | International Rectifier |
| 文件页数： | 2/8页 |
| 文件大小： | 0K |
| 描述： | IC CONV PENTIUM II 7-UTHINP |
| 标准包装： | 2,000 |
| 应用： | 转换器，Intel Pentium? II |
| 输入电压： | 3 V ~ 7 V |
| 输出数： | 2 |
| 输出电压： | 1.5V，2.5V |
| 工作温度： | 0°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-252-6，DPak（5 引线 + 接片） |
| 供应商设备封装： | 5-Ultra Thin-Pak? |
| 包装： | 带卷 (TR) |
| 其它名称： | IRU1261-CPTR IRU1261-CPTR-ND |
IRU1261
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V IN ) ....................................................
Power Dissipation .....................................................
Storage Temperature Range ......................................
Operating Junction Temperature Range .....................
PACKAGE INFORMATION
7V
Internally Limited
-65°C To 150°C
0°C To 150°C
5-PIN PLASTIC TO-263 (M)
5-PIN ULTRA THIN-PAK TM (P)
5
4
3
2
1
V OUT 1
V IN
Gnd
V OUT 2
V CTRL
5
4
3
2
1
V OUT 1
V IN
Gnd
V OUT 2
V CTRL
θ JA =30 8 C/W for 1"sq pad
θ JA =30 8 C/W for 1"sq pad
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over C IN =1 m F, C OUT =100 m F and T J =0 to 150 8 C. Typical
values refer to T J =25 8 C. I FL =6A for output #2 and 1A for output #1. V CTRL =5V, V IN =3.3V.
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
V CTRL Input Voltage
3.0
V
Output Voltage #2
V O2
Io=10mA, T J =25 ° C
1.485
1.500
1.515
V
Io=10mA
1.470
1.500
1.530
Output Voltage #1
V O1
Io=10mA, T J =25 ° C
2.462
2.500
2.537
V
Io=10mA
2.425
2.500
2.575
Line Regulation
Load Regulation (Note 1)
Dropout Voltage (Output #2)
Io=10mA, 3.1V<V IN <3.6V
10mA<Io<I FL
Note 2, Io=6A, V CTRL =4.75V
0.2
0.4
1.3
%
%
V
Dropout Voltage (Output #1)
Current Limit (Output #2)
Current Limit (Output #1)
Minimum Load Current
Thermal Regulation
Note 2, Io=1A, V CTRL =4.75V
D Vo=100mV
D Vo=100mV
Note 3
30ms Pulse, Io=I FL
6.1
1.1
0.4
5
0.01
0.6
10
0.02
V
A
A
mA
%/W
Ripple Rejection
f=120Hz, Co=25 m F Tantalum,
Io=0.5 3 I FL
70
dB
Temperature Stability
Long Term Stability
RMS Output Noise
Io=10mA
T J =125 8 C, 1000Hrs
10Hz<f<10KHz
0.5
0.3
0.003
%
%
%V O
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 V IN and V OUT required to main-
tain regulation at V OUT . 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.
2
www.irf.com
Rev. 2.0
09/19/02
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