LM2682
Switched Capacitor Voltage Doubling Inverter
General Description
The LM2682 is a CMOS charge-pump voltage inverter ca-
pable of converting positive voltage in the range of +2.0V to
+5.5V to the corresponding doubled negative voltage of
4.0V to 11.0V respectively. The LM2682 uses three low
cost capacitors to provide 10 mA of output current without
the cost, size, and EMI related to inductor based circuits.
With an operating current of only 150 A and an operating
efficiency greater than 90% with most loads, the LM2682
provides ideal performance for battery powered systems.
The LM2682 offers a switching frequency of 6 kHz.
Features
n
Inverts then doubles input supply voltage
n
Small MSOP-8 package (mini SO-8) and SO-8 package
n
90
typical output impedance
n
94% typical power efficiency at 10 mA
Applications
n
LCD contrast biasing
n
GaAs power amplifier biasing
n
Interface power supplies
n
Handheld instrumentation
n
Laptop computers and PDAs
Typical Operating Circuit and Pin Configuration
8-Pin MSOP
or 8-Pin SOIC
10099701
10099702
Ordering Information
Order Number
Package
Package Number
Package Marking
Supplied As
LM2682MM
MSOP-8
MUA08A
S11A
Tape and Reel (1000 units/reel)
LM2682MMX
MSOP-8
MUA08A
S11A
Tape and Reel (3500 units/reel)
LM2682M
SO-8
M08A
LM2682M
Rail (95 units/rail)
LM2682MX
SO-8
M08A
LM2682M
Tape and Reel (2500 units/reel)
November 1999
LM2682
Switched
Capacitor
V
oltage
Doubling
Inverter
2004 National Semiconductor Corporation
DS100997
www.national.com
相关PDF资料
LM2682M/NOPB SWITCHED CAPACITOR CONVERTER, 15 kHz SWITCHING FREQ-MAX, PDSO8
LM2685MTCX/NOPB SWITCHED CAPACITOR REGULATOR, 180 kHz SWITCHING FREQ-MAX, PDSO14
LM2686MTCX/NOPB SWITCHED CAPACITOR REGULATOR, 180 kHz SWITCHING FREQ-MAX, PDSO14
LM2787BPX/NOPB 0.01 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PBGA8
LM2787TP/NOPB 0.01 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PBGA8
LM2787BP/NOPB 0.01 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PBGA8
LM285AH-1.2 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, MBCY2
LM185AYH-1.2 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, MBCY2
相关代理商/技术参数
LM2685B E WAF 制造商:Texas Instruments 功能描述:
LM2685MTC 制造商:Texas Instruments 功能描述:VOLT CONVERTER SMD 2685 TSSOP14
LM2685MTC 制造商:Texas Instruments 功能描述:VOLT CONVERTER SMD 2685 TSSOP14
LM2685MTC/NOPB 功能描述:IC REG MULTI CONFIG DL 14-TSSOP 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:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 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 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR
LM2685MTCX/NOPB 功能描述:IC REG MULTI CONFIG 50MA 14TSSOP 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:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 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 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR
LM2686MTC 制造商:Texas Instruments 功能描述:VOLT CONVERTER SMD 2686 TSSOP14
LM2686MTC 制造商:Texas Instruments 功能描述:VOLT CONVERTER SMD 2686 TSSOP14
LM2686MTC/NOPB 功能描述:IC REG SWITCHED CAP DBL 14-TSSOP 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:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 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 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR