- 您现在的位置：买卖IC网 > PDF目录39408 > LTC1503CMS8-2#TR (LINEAR TECHNOLOGY CORP) 1-OUTPUT DC-DC REG PWR SUPPLY MODULE PDF资料下载
参数资料
| 型号： | LTC1503CMS8-2#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | PLASTIC, MSOP-8 |
| 文件页数： | 1/12页 |
| 文件大小： | 187K |
| 代理商： | LTC1503CMS8-2#TR |
1
LTC1503-1.8/LTC1503-2
High Efficiency Inductorless
Step-Down DC/DC Converters
s
Input Voltage Range: 2.4V to 6V
s
Fixed Output Voltages: 1.8V
±4%, 2V ±4%
s
Output Current: Up to 100mA
s
No Inductors
s
Typical Efficiency 25% Higher than LDOs
s
Low Operating Current: 25
A
s
Low Shutdown Current: 5
A
s
600kHz Switching Frequency
s
Shutdown Disconnects Load from VIN
s
Soft-Start Limits Inrush Current at Turn-On
s
Short-Circuit and Overtemperature Protected
s
Available in 8-Pin MSOP and SO Packages
The LTC
1503-1.8/LTC1503-2 are switched capacitor
step-down DC/DC converters that produce a regulated
output from a 2.4V to 6V input. The parts use switched
capacitor fractional conversion to achieve high efficiency
over the entire input range. No inductors are required.
Internal circuitry controls the step-down conversion ratio
to optimize efficiency as the input voltage and load condi-
tions vary. Typical efficiency is 25% higher than that of a
low dropout (LDO) linear regulator.
Regulation is achieved by sensing the output voltage and
enabling the internal switching network as needed to
maintain a fixed output voltage. This method of regulation
enables the parts to achieve high efficiency at extremely
light loads. Low operating current (25
A with no load, 5A
in shutdown) and low external parts count (two 1
F flying
capacitors and two 10
F bypass capacitors) make the
LTC1503-1.8/LTC1503-2 ideally suited for space con-
strained battery-powered applications. The parts are fully
short-circuit and overtemperature protected.
The LTC1503-1.8/LTC1503-2 are available in 8-pin MSOP
and SO packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Cellular Phones
s
Handheld Computers
s
Smart Card Readers
s
Low Power DSP Supplies
s
Portable Electronic Equipment
s
Handheld Medical Instruments
Efficiency vs Input Voltage
Single Li-Ion to 2V DC/DC Converter
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
4
2
3
5
1
8
6
7
VIN
C1–
C1+
SHDN/SS
VOUT
C2 –
C2+
GND
LTC1503-2
1
F
1503-1.8/2 TA01
1
F
10
F
1-CELL Li-Ion OR
3-CELL NiMH
10
F
VOUT = 2V
IOUT = 100mA
INPUT VOLTAGE (V)
2
EFFICIENCY
(%)
60
80
6
1503-1.8/2 TA02
40
20
3
4
5
100
LTC1503-2
VOUT = 2V
IOUT = 100mA
IOUT = 1mA
“IDEAL” LDO
相关PDF资料 |
PDF描述 |
|---|---|
| LTC1517CS5-3.3#PBF | SWITCHED CAPACITOR REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO5 |
| LTC1522CS | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| LTC1551CS-4.1 | SWITCHED CAPACITOR REGULATOR, 900 kHz SWITCHING FREQ-MAX, PDSO14 |
| LTC1551LCS8#TR-4.1 | SWITCHED CAPACITOR REGULATOR, 900 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC1550LCMS8#TR-2 | SWITCHED CAPACITOR REGULATOR, 900 kHz SWITCHING FREQ-MAX, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1503CS8-1.8 | 功能描述:IC REG BUCK SWITCHED CAP 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 |
| LTC1503CS8-1.8#PBF | 功能描述:IC REG BUCK SWITCHED CAP 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 |
| LTC1503CS8-1.8#TR | 功能描述:IC REG BUCK SWITCHED CAP 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 |
| LTC1503CS8-1.8#TRPBF | 功能描述:IC REG BUCK SWITCHED CAP 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:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 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:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
| LTC1503CS8-2 | 功能描述:IC REG BUCK SWITCHD CAP 2V 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: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 |
发布紧急采购，3分钟左右您将得到回复。