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参数资料
| 型号： | LT1300CS8#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.75 A SWITCHING REGULATOR, 155 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 4/8页 |
| 文件大小： | 219K |
| 代理商： | LT1300CS8#TR |
4
LT1300
PIN FUNCTIONS
UU
U
GND (Pin 1): Signal Ground.
Sel (Pin 2): Output Select. When tied to VIN or VOUT
converter regulates at 5V. When grounded converter
regulates at 3.3V.
SHDN (Pin 3): Shutdown. Pull high to effect shutdown. Tie
to ground for normal operation.
Sense (Pin 4): “Output” Pin.
ILIM (Pin 5): Float for 1A switch current limit. Tie to ground
for approximately 400mA. A resistor between ILIM and
ground sets peak current to some intermediate value (see
Figure 5).
VIN (Pin 6): Supply Pin. Must be bypassed with a large
value electrolytic to ground. A 0.1
F ceramic capacitor
close to the pin may be needed in some cases.
SW (Pin 7): Switch Pin. Connect inductor and diode here.
Keep layout short and direct to minimize electronic radia-
tion.
PGND (Pin 8): Power Ground. Tie to signal ground (pin 1)
under the package. Bypass capacitor from VIN should be
tied directly to the pin.
Figure 1.
BLOCK DIAGRAM
W
OSCILLATOR
155kHZ
R2
730
C2
SW
R1
3
Q2
1x
Q1
160x
18mV
OFF
VIN
ILIM
PGND
VOUT
ENABLE
A1
COMPARATOR
–
+
–
+
1.25V
REFERENCE
L1
D1
7
2
4
SENSE
A2 CURRENT
COMPARATOR
A3 DRIVER
BIAS
Q3
8.5k
58
SHUTDOWN
3
SELECT
2
GND
161k
144k
500k
C1
1
LT1300 F1
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相关代理商/技术参数 |
参数描述 |
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| LT1301 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory |
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| LT1301CN8 | 功能描述:IC REG BOOST 5V/12V 8DIP 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:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 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 |
| LT1301CN8#PBF | 功能描述:IC REG BOOST 5V/12V 8DIP 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:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 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 |
| LT1301CN8PBF | 制造商:Linear Technology 功能描述:LT1301CN8PBF |
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