- 您现在的位置：买卖IC网 > PDF目录69004 > LM3351MWC (NATIONAL SEMICONDUCTOR CORP) SWITCHED CAPACITOR CONVERTER, 275 kHz SWITCHING FREQ-MAX, UUC PDF资料下载
参数资料
| 型号： | LM3351MWC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 275 kHz SWITCHING FREQ-MAX, UUC |
| 封装： | WAFER |
| 文件页数： | 2/11页 |
| 文件大小： | 316K |
| 代理商： | LM3351MWC |
National P/N LM3351 - 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
LM3351MM
8
MSL Full production N/A
N/A
1K+
$0.7200
reel
of
1000
Z1T
S05A
LM3351MMX
8
MSL Full production N/A
N/A
1K+
$0.7200
reel
of
3500
Z1T
S05A
LM3351 MDC
Full production
N/A
N/A Samples
gel pak
of
N/A
-
LM3351 MWC
Full production
N/A
wafer jar
of
N/A
-
General Description
The LM3351 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 LM3351 is pin for pin compatible with the LM3350 but consumes 66% less quiescent
current. The LM3351 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
200 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
95% typical power conversion efficiency at 50 mA
q
250 nA typical shutdown current
q
Low quiescent current extends battary life
Applications
q
Any mixed 5V and 3.3V system
q
Laptop computers and PDAs
q
Handheld instrumentation
q
PCMCIA cards
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM3351.html (2 of 3) [Aug-09-2002 3:13:36 PM]
相关PDF资料 |
PDF描述 |
|---|---|
| LM3351MDC | SWITCHED CAPACITOR CONVERTER, 275 kHz SWITCHING FREQ-MAX, UUC |
| LM3352MTCX-3.3/NOPB | SWITCHED CAPACITOR REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO16 |
| LM3352MTCX-2.5/NOPB | SWITCHED CAPACITOR REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO16 |
| LM3352MTCX-3.0/NOPB | SWITCHED CAPACITOR REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO16 |
| LM3352MTC-3.3/NOPB | SWITCHED CAPACITOR REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3352 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Regulated 200 mA Buck-Boost Switched Capacitor DC/DC Converter |
| LM3352-3.0EVAL | 功能描述:EVALUATION BOARD FOR LM3352-3.0 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM3352-3.3EVAL | 功能描述:EVALUATION BOARD FOR LM3352-3.3 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM3352MTC-2.5 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Regulated 200 mA Buck-Boost Switched Capacitor DC/DC Converter |
| LM3352MTC-2.5/NOPB | 功能描述:IC REG MULTI CONFIG 16-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 |
发布紧急采购，3分钟左右您将得到回复。