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LM2773TLX/NOPB PDF预览

LM2773TLX/NOPB

更新时间: 2024-09-26 01:11:59
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德州仪器 - TI 输出元件
页数 文件大小 规格书
18页 1028K
描述
LM2773 Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator

LM2773TLX/NOPB 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:VFBGA,
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:1.57其他特性:ALSO HAS 1.815 OUTPUT VOLTAGE
模拟集成电路 - 其他类型:SWITCHED CAPACITOR REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE FREQUENCY MODULATION最大输入电压:5.5 V
最小输入电压:2.5 V标称输入电压:3.6 V
JESD-30 代码:S-PBGA-B9JESD-609代码:e1
长度:1.4715 mm湿度敏感等级:1
功能数量:1端子数量:9
最高工作温度:85 °C最低工作温度:-30 °C
最大输出电流:0.3 A最大输出电压:1.8 V
最小输出电压:1.6 V标称输出电压:1.619 V
封装主体材料:PLASTIC/EPOXY封装代码:VFBGA
封装形状:SQUARE封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度):260座面最大高度:0.675 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:1150 kHz温度等级:OTHER
端子面层:Tin/Silver/Copper (Sn/Ag/Cu)端子形式:BALL
端子节距:0.5 mm端子位置:BOTTOM
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:1.4715 mm
Base Number Matches:1

LM2773TLX/NOPB 数据手册

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LM2773  
www.ti.com  
SNVS554A JANUARY 2008REVISED MAY 2013  
LM2773 Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator  
Check for Samples: LM2773  
1
FEATURES  
DESCRIPTION  
The LM2773 is a switched capacitor step-down  
regulator that produces a selectable 1.8V or 1.6V  
output. It is capable of supplying loads up to 300mA.  
The LM2773 operates with an input voltage from 2.5V  
to 5.5V, accommodating 1-cell Li-Ion batteries and  
chargers.  
2
Low-Noise Spread Spectrum Operation  
1.8V/1.6V Selectable Output Voltage  
2% Output Voltage Regulation  
> 75% Efficiency in 1.8V Mode  
Very Low Output Ripple: 10mV @ 300mA  
Output Currents up to 300mA  
The LM2773 utilizes a regulated charge pump with  
gains of 2/3x and 1x. It has very low ripple and noise  
on both the input and output due to its pre-regulated  
1.15MHz (typ.) switching frequency and spread  
spectrum operation. When output currents are low,  
the LM2773 automatically switches to a low-ripple  
PFM regulation mode to maintain high efficiency over  
the entire load range.  
2.5V to 5.5V Input Voltage Range  
Shutdown Disconnects Load from VIN  
1.15MHz Switching Frequency  
No Inductors…Small Solution Size  
Short Circuit and Thermal Protection  
0.5mm pitch, DSBGA-9 (1.511 × 1.511mm ×  
0.6mm)  
The LM2773 is available in TI's 0.5mm pitch 9-bump  
DSBGA.  
APPLICATIONS  
Power Supply for DSP's, Memory, and  
Microprocessors  
Mobile Phones and Pagers  
Digital Cameras, Portable Music Players, and  
Other Portable Electronic Devices  
Typical Application Circuit  
V
I
: 1.8V or 1.6V  
up to 300 mA  
V
IN  
= 2.5V to  
5.5V  
OUT  
OUT  
V
V
OUT  
IN  
C
IN  
C
OUT  
4.7 mF  
1 mF  
GND  
LM2773  
C2+  
C1+  
C2  
1 mF  
C1  
1 mF  
C2-  
C1-  
EN  
SEL  
Capacitors: 1 mF - C1005 (0402), X5R, 6.3V  
4.7 mF - C1608 (0603), X5R, 6.3V  
or equivalent  
Figure 1.  
Figure 2. LM2773 Efficiency vs.  
Low-Dropout Linear Regulator (LDO) Efficiency  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2013, Texas Instruments Incorporated  

LM2773TLX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM2773TL/NOPB TI

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