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参数资料
| 型号： | LM3350MWC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 1100 kHz SWITCHING FREQ-MAX, UUC |
| 封装： | WAFER |
| 文件页数： | 2/11页 |
| 文件大小： | 293K |
| 代理商： | LM3350MWC |
National P/N LM3350 - Switched Capacitor Voltage Converter
Part Number
Package
Status
Models
Samples &
Electronic
Orders
Budgetary Pricing
Std
Pack
Size
Type
Pins MSL
SPICE IBIS
Qty
$US each
LM3350MM
8
MSL Full production N/A
N/A
1K+
$0.7200
reel
of
1000
Z1T
S00A
LM3350MMX
8
MSL Full production N/A
N/A
1K+
$0.7200
reel
of
3500
Z1T
S00A
LM3350 MDC
Full production
N/A
N/A Samples
gel pak
of
N/A
-
LM3350 MWC
Full production
N/A
wafer jar
of
N/A
-
General Description
The LM3350 is a CMOS charge-pump voltage converter which efficiently provides a 3.3V to 5V step-up, or 5V
to 3.3V step-down. The LM3350 uses four small, low cost capacitors to provide the voltage conversion. It
eliminates the cost, size and radiated EMI related to inductor based circuits, or the power loss of a linear
regulator. Operating power conversion efficiency greater than 90% provides ideal performance for battery
powered portable systems.
The architecture provides a fixed voltage conversion ratio of 3/2 or 2/3. Thus it can be used for other DC-DC
conversions as well.
Features
q
Conversion of 3.3V to 5V, or 5V to 3.3V
q
Small Mini SO-8 package
q
No inductor required
Key Specification
q
800 kHz switch frequency allows use of very small, inexpensive capacitors.
q
4.2Ohm typical step-up output impedance
q
1.8Ohm typical step-down output impedance
q
90% typical power conversion efficiency at 50 mA
q
250 nA typical shutdown current
Applications
q
Any mixed 5V and 3.3V system
q
Laptop computers and PDAs
q
Handheld instrumentation
q
PCMCIA cards
Application Notes
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM3350.html (2 of 3) [Aug-09-2002 3:13:00 PM]
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PDF描述 |
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| LM336Z-5.0/T7 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5 V, PBCY3 |
| LM336BZ-5.0/T7 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5 V, PBCY3 |
| LM3524DMWC | 0.2 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, UUC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3351 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Switched Capacitor Voltage Converter |
| LM3351A WAF | 制造商:Texas Instruments 功能描述: |
| LM3351AM E WAF | 制造商:Texas Instruments 功能描述: |
| LM3351MM | 功能描述:IC REG MULTI CONFIG 50MA 8-MSOP 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 |
| LM3351MM/NOPB | 功能描述:IC REG MULTI CONFIG 50MA 8-MSOP 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 |
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