参数资料
型号: LT1303CN8-5
厂商: Linear Technology
文件页数: 8/12页
文件大小: 0K
描述: IC REG BOOST 5V 0.2A 8DIP
标准包装: 50
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: 1.8 V ~ 6 V
PWM 型: Burst Mode?
电流 - 输出: 200mA
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
包装: 管件
供应商设备封装: 8-PDIP
产品目录页面: 1326 (CN2011-ZH PDF)
LT1303/LT1303-5
APPLICATIO N S I N FOR M ATIO N
Capacitor Selection
Input and output capacitors should have low ESR for best
efficiency. Recommended capacitors include AVX TPS
series, Sprague 595D series, and Sanyo OS-CON. The
output capacitor’s ESR determines the high frequency
ripple amplitude. A 100 μ F capacitor is the minimum rec-
ommended for a 5V output. Higher output voltages can use
LT1303 F08
Figure 8. This Inductor Saturates at I L ≈ 1A. A Poor Choice
lower capacitance values. For example, a 12V output can
use a 33 μ F or 47 μ F capacitor. The V IN pin of the LT1303
should be decoupled with a 47 μ F or 100 μ F capacitor at the
pin. When driving a transformer, an additional decoupling
network of 10 ? and 0.1 μ F ceramic is recommended as
shown in Figure 10.
V IN
10 ?
LT1303 F09
Figure 9. Slight Exponential Shape to Inductor Current
Waveform Indicates Excessive DC Resistance
+
47 μ F
0.1 μ F
CERAMIC
V IN
LT1303
SW
? ? ?
Diode Selection
GND
PGND
LT1303 F10
The LT1303’s high switching speed demands a high speed
rectifier. Schottky diodes are preferred for their low for-
ward drop and fast recovery. Suitable choices include the
1N5817, MBRS120LT3, and MBR0520LT1. Do not use
signal diodes such as 1N4148. They cannot carry 1A
Figure 10. 10 ? -1 μ F Network to LT1303 V IN Pin Provides
Additional Decoupling. Recommended When Driving
Transformers.
Table 2. Recommended Capacitors
current. Also avoid “general-purpose” diodes such as
1N4001. These are far too slow and are unsuitable for any
switching regulator application. For high temperature
applications a silicon diode such as the MUR105 will have
less leakage.
VENDOR
AVX
Sanyo
Panasonic
Sprague
SERIES
TPS
OS-CON
HFQ
595D
TYPE
Surface Mount
Through-Hole
Through-Hole
Surface Mount
PHONE
NUMBERS
(803) 448-9411
(619) 661-6835
(201) 348-5200
(603) 224-1961
8
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LT1303CN8-5#PBF 功能描述:IC REG BOOST 5V 0.2A 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: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
LT1303CN8PBF 制造商:Linear Technology 功能描述:LT1303CN8PBF
LT1303CS8 功能描述:IC REG BOOST ADJ 0.2A 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: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
LT1303CS8#PBF 功能描述:IC REG BOOST ADJ 0.2A 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
LT1303CS8#TR 功能描述:IC REG BOOST ADJ 0.2A 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: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