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| 型号： | LT1308BCS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST 5V 1A 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： | 1 V ~ 10 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 无 |
| 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： | 1327 (CN2011-ZH PDF) |
LT1308A/LT1308B
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating temperature
range, otherwise speci?cations are at T A = 25°C. Industrial Grade –40°C to 85°C. V IN = 1.2V, V SHDN = V IN , unless otherwise noted.
SYMBOL
f OSC
PARAMETER
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch V CESAT
CONDITIONS
Duty Cycle = 30% (Note 4)
I SW = 2A (25°C, – 40°C), V IN = 1.5V
l
l
MIN
500
82
2
TYP
600
90
3
290
MAX
750
4.5
350
UNITS
kHz
%
A
mV
I SW = 2A (85°C), V IN = 1.5V
330
400
mV
Burst Mode Operation Switch Current Limit
V IN = 2.5V, Circuit of Figure 1
400
mA
(LT1308A)
Shutdown Pin Current
V SHDN = 1.1V
V SHDN = 6V
V SHDN = 0V
l
l
2
20
0.01
5
35
0.1
μA
μA
μA
LBI Threshold Voltage
l
196
193
200
200
204
207
mV
mV
LBO Output Low
LBO Leakage Current
LBI Input Bias Current (Note 5)
I SINK = 50μA
V LBI = 250mV, V LBO = 5V
V LBI = 150mV
l
l
0.1
0.01
33
0.25
0.1
100
V
μA
nA
Low-Battery Detector Gain
3000
V/V
Switch Leakage Current
V SW = 5V
l
0.01
10
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT1308ACS8, LT1308ACF, LT1308BCS8 and LT1308BCF are
designed, characterized and expected to meet the industrial temperature
limits, but are not tested at –40°C and 85°C. I grade devices are
guaranteed over the –40°C to 85°C operating temperature range.
Note 4: Switch current limit guaranteed by design and/or correlation to
static tests. Duty cycle affects current limit due to ramp generator (see
Block Diagram).
Note 5: Bias current ?ows out of LBI pin.
Note 6: Connect the four GND pins (Pins 4–7) together at the device.
Similarly, connect the three SW pins (Pins 8 –10) together and the two V IN
pins (Pins 11, 12) together at the device.
Note 3: Bias current ?ows into FB pin.
TYPICAL PERFORMANCE CHARACTERISTICS
LT1308B
3.3V Output Ef?ciency
LT1308A
3.3V Output Ef?ciency
LT1308A
5V Output Ef?ciency
95
90
85
V IN = 1.8V
V IN = 2.5V
95
90
85
V IN = 1.8V
V IN = 2.5V
95
90
85
V IN = 3.6V
V IN = 4.2V
80
80
80
75
V IN = 1.2V
75
V IN = 1.2V
75
V IN = 1.5V
V IN = 2.5V
70
65
60
55
70
65
60
55
70
65
60
55
50
1
10
100
1000
50
1
10
100
1000
50
1
10 100
1000
LOAD CURRENT (mA)
1308A/B G01
LOAD CURRENT (mA)
1308A/B G02
LOAD CURRENT (mA)
1308A/B G03
1308abfb
4
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相关代理商/技术参数 |
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|---|---|
| LT1308BCS8-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Current, Micropower Single Cell, 600kHz DC/DC Converters |
| LT1308BCS8-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Current, Micropower Single Cell, 600kHz DC/DC Converters |
| LT1308BIS8 | 功能描述:IC REG BOOST 5V 1A 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT1308BIS8#PBF | 功能描述:IC REG BOOST 5V 1A 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LT1308BIS8#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER BOOST 600KHZ 3A SOIC 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BOOST, 600KHZ, 3A, SOIC |
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