参数资料
型号: LT1307BCS8#TRPBF
厂商: Linear Technology
文件页数: 4/20页
文件大小: 0K
描述: IC REG BOOST 3.3V/5V 0.1A 8SOIC
标准包装: 2,500
类型: 升压(升压)
输出类型: 固定
输出数: 1
输出电压: 3.3V,5V
输入电压: 1 V ~ 5 V
PWM 型: 电流模式,混合
频率 - 开关: 600kHz
电流 - 输出: 100mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-SOIC
LT1307/LT1307B
ELECTRICAL C HARA C TERISTICS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T A = 25 ° C.
Industrial Grade – 40 ° C to 85 ° C. V IN = 1.1V, V SHDN = V IN , LT1307/LT1307B unless otherwise noted.
SYMBOL
I Q
PARAMETER
Quiescent Current
CONDITIONS
V FB = 1.3V, Not Switching (LT1307)
V FB = 1.3V, Not Switching (LT1307B)
V SHDN = 0V
q
q
q
MIN
TYP
50
1
1
MAX
100
1.8
3
UNITS
μ A
mA
μ A
V FB
Feedback Voltage
q
1.195
1.22
1.245
V
I B
FB Pin Bias Current (Note 3)
Reference Line Regulation
V FB = V REF
1V ≤ V IN ≤ 2V (– 40 ° C)
1V ≤ V IN ≤ 2V (85 ° C)
2V ≤ V IN ≤ 5V
q
q
10
27
0.6
0.3
100
1.1
3.2
0.8
nA
%/V
%/V
%/V
Minimum Input Voltage
Input Voltage Range
– 40 ° C
85 ° C
q
1.1
0.8
1.2
1.0
5
V
V
V
g m
Error Amp Transconductance
? I = 5 μ A
q
25
35
65
μ mhos
A V
Error Amp Voltage Gain
– 40 ° C
85 ° C
35
30
V/V
V/V
f OSC
Switching Frequency
Maximum Duty Cycle
Switch Current Limit (Note 4)
– 40 ° C
85 ° C
DC = 40%
q
q
500
80
75
600
84
80
0.6
750
1.25
kHz
%
%
A
DC = 75%
0.5
A
Switch V CESAT
Burst Mode Operation Switch Current Limit
(LT1307 Only)
I SW = 500mA, V IN = 1.2V (– 40 ° C)
I SW = 500mA (85 ° C)
L = 10 μ H
L = 22 μ H
250
330
100
50
350
400
mV
mV
mA
mA
Shutdown Pin Current
V SHDN = V IN
V SHDN = 0V
q
q
2.5
– 1.5
4.0
– 2.5
μ A
μ A
LBI Threshold Voltage
q
186
200
210
mV
LBO Output Low
LBO Leakage Current
LBI Input Bias Current (Note 5)
Low-Battery Detector Gain
Switch Leakage Current
I SINK = 10 μ A
V LBI = 250mV, V LBO = 5V
V LBI = 150mV
1M ? Load (– 40 ° C)
1M ? Load (85 ° C)
V SW = 5V
q
q
q
q
1000
400
0.1
0.1
5
6000
0.01
0.25
0.3
30
3
V
μ A
nA
V/V
V/V
μ A
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Specifications for commercial (C) grade devices are guaranteed
but not tested at – 20 ° C. MS8 package devices are designed for and
intended to meet commercial temperature range specifications but are not
tested at – 20 ° C or 0 ° C.
Note 4: Switch current limit guaranteed by design and/or correlation to
static tests. Duty cycle affects current limit due to ramp generator.
Note 5: Bias current flows out of LBI pin.
Note 6: The LT1307/LT1307B will withstand continuous application of
1.6V applied to the GND pin while V IN and SW are grounded.
Note 3: Bias current flows into FB pin.
1307fa
4
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