参数资料
型号: LT1302CS8-5#PBF
厂商: Linear Technology
文件页数: 4/16页
文件大小: 0K
描述: IC REG BOOST 5V 0.6A 8SOIC
标准包装: 100
类型: 升压(升压)
输出类型: 固定
输出数: 1
输出电压: 5V
输入电压: 2 V ~ 8 V
PWM 型: 电流模式,混合
电流 - 输出: 600mA
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 8-SOIC
产品目录页面: 1326 (CN2011-ZH PDF)
LT1302/LT1302-5
TYPICAL PERFOR M A N CE CHARACTERISTICS
100
90
Maximum Duty Cycle
300
275
Oscillator Frequency
20
18
16
Shutdown Pin Bias Current
T A = 25 ° C
80
70
250
225
200
14
12
10
8
6
60
175
4
2
50
–50
–25
0 25 50
TEMPERATURE ( ° C)
75
100
150
–50
–25
0 25 50
TEMPERATURE ( ° C)
75
100
0
0
1
2 3 4 5 6
SHUTDOWN VOLTAGE (V)
7
8
5.20
5.15
1302 G10
LT1302-5 Output Voltage vs
Load Current
20
1302 G11
Maximum Output Power*
Boost Mode
1302 G12
5.10
5.05
5.00
V IN = 4V
16
12
4.95
V IN = 2.2V
V IN = 3V
8
4.90
4
4.85
4.80
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
0
2
4
6
8
10
LOAD CURRENT (A)
INPUT VOLTAGE (V)
PI FU CTIO S
1302 G13
* APPROXIMATE
1302 G14
GND (Pin 1): Signal Ground. Feedback resistor and 0.1 μ F
ceramic bypass capacitor from V IN should be connected
directly to this pin.
V C (Pin 2): Frequency Compensation Pin. Connect series
RC to GND. Keep trace short.
SHDN (Pin 3): Shutdown. Pull high to effect shutdown; tie
to ground for normal operation.
FB/Sense (Pin 4): Feedback/Sense. On the LT1302 this
pin connects to CMP1 input. On the LT1302-5 this pin
connects to the output resistor string.
4
I T (Pin 5): Normally left floating. Addition of a 3.3k resistor
to GND forces the LT1302 into current mode at light loads.
Efficiency drops at light load but increases at medium
loads. See Applications Information section.
V IN (Pin 6): Supply Pin. Must be bypassed with: (1) a 0.1 μ F
ceramic to GND, and (2) a large value electrolytic to PGND.
When V IN is greater than 5V, a low value resistor (2 ? to
10 ? ) is recommended to isolate the V IN pin from input
supply noise.
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