参数资料
型号: LTC1502CMS8-3.3
厂商: Linear Technology
文件页数: 1/8页
文件大小: 0K
描述: IC REG SWITCHED CAP 3.3V 8MSOP
标准包装: 50
类型: 切换式电容器(充电泵)
输出类型: 固定
输出数: 1
输出电压: 3.3V
输入电压: 0.9 V ~ 1.8 V
频率 - 开关: 500kHz
电流 - 输出: 10mA
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 管件
供应商设备封装: 8-MSOP
LTC1502-3.3
Single Cell to 3.3V
Regulated Charge Pump
DC/DC Converter
FEATURES
DESCRIPTIO
s
s
s
s
s
s
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s
Input Voltage Range: 0.9V to 1.8V
0.9V Guaranteed Start-Up Voltage
Regulated Output Voltage: 3.3V ± 4%
Output Current: 10mA (V IN ≥ 1V)
No Inductors
Shutdown Disconnects Load from V IN
Low Operating Current: 40 μ A
Low Shutdown Current: 5 μ A
Short-Circuit and Overtemperature Protected
Application Circuit Fits in < 0.125in 2 PCB Area
Available in 8-Pin MSOP and SO Packages
The LTC ? 1502-3.3 is a quadrupler charge pump DC/DC
converter that produces a regulated 3.3V output from a
single alkaline cell input. It requires only five small external
capacitors—no inductors are required. Low supply cur-
rent (40 μ A typical, 5 μ A in shutdown) and minimal external
components make the LTC1502-3.3 ideal for space and
power conscious single-cell applications. The total printed
circuit board area of the circuit shown below is less than
0.125in 2 .
Forcing the C1 – /SHDN pin low through an external resis-
tive pull-down puts the part into shutdown mode. During
shutdown, the internal oscillator is stopped and the load is
Pagers
Battery Backup Supplies
Portable Electronic Equipment
Handheld Medical Instruments
Glucose Meters
APPLICATIO  S
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disconnected from V IN . An internal pull-up current on the
C1 – /SHDN pin forces the part back into normal operation
once the pull-down resistance is removed.
The LTC1502-3.3 is short-circuit protected and survives
an indefinite V OUT short to ground. The LTC1502-3.3 is
available in 8-pin MSOP and SO packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Single Cell to 3.3V DC/DC Converter
Output Voltage vs Input Voltage
10 μ F
1
2
C2
C1 +
V OUT
C3 +
8
7
10 μ F
V OUT = 3.3V
I OUT = 10mA
3.5
3.4
T A = 25 ° C
1 μ F
3
4
LTC1502-3.3
C1 – /SHDN C3 –
GND V IN
6
5
1 μ F
10 μ F
V IN
SINGLE CELL
NiCd or
ALKALINE
1502-3.3 TA01
3.3
3.2
I OUT = 10mA
I OUT = 15mA
3.1
PCB LAYOUT FITS IN < 0.125IN 2
3.0
0.8
1.0
1.2
1.4
1.6
1.8
INPUT VOLTAGE (V)
1502-3.3 TA02
1
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LTC1502CS8-3.3 功能描述:IC REG SWITCHED CAP 3.3V 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
LTC1502CS8-3.3#PBF 功能描述:IC REG SWITCHED CAP 3.3V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:MIC23xxx HyperLight Load™ Regulators 标准包装:5,000 系列:HyperLight Load® 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:1.8V 输入电压:2.7 V ~ 5.5 V PWM 型:混合物 频率 - 开关:4MHz 电流 - 输出:2A 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:8-VFDFN 裸露焊盘,8-MLF? 包装:带卷 (TR) 供应商设备封装:8-MLF?(2x2) 产品目录页面:1094 (CN2011-ZH PDF) 其它名称:576-3303-2
LTC1502CS8-3.3#TR 功能描述:IC REG SWITCHED CAP 3.3V 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
LTC1502CS8-3.3#TRPBF 功能描述:IC REG SWITCHED CAP 3.3V 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:20 系列:SIMPLE SWITCHER® 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP(0.300",7.62mm) 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12
LTC1502IMS8-3.3 功能描述:IC REG SWITCHED CAP 3.3V 8MSOP 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