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LM2770SDX-12157/NOPB

更新时间： 2024-09-25 21:15:47
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德州仪器 - TI 开关
页数 文件大小 规格书
20页 2385K
描述
SWITCHED CAPACITOR REGULATOR, 925kHz SWITCHING FREQ-MAX, DSO10, 3 X 3 MM, 0.80 MM HEIGHT, LEAD FREE, PLL-10

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LM2770SDX-12157/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SON
包装说明：HVSON, SOLCC10,.11,20针数：10
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.64
模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATOR最大输入电压：5.5 V
最小输入电压：2.7 V标称输入电压：3.6 V
JESD-30 代码：S-XDSO-N10JESD-609代码：e3
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：10
最高工作温度：85 °C最低工作温度：-30 °C
最大输出电流：0.25 A标称输出电压：1.575 V
封装主体材料：UNSPECIFIED封装代码：HVSON
封装等效代码：SOLCC10,.11,20封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Other Analog ICs表面贴装：YES
切换器配置：BUCK最大切换频率：925 kHz
温度等级：OTHER端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
宽度：3 mmBase Number Matches：1

LM2770SDX-12157/NOPB 数据手册

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LM2770  
www.ti.com  
SNVS318E –NOVEMBER 2004–REVISED MAY 2013  
LM2770 High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode  
Check for Samples: LM2770  
1
FEATURES  
APPLICATIONS  
2
•
High Efficiency Multi-Gain Architecture: Peak  
Power Efficiency >85%  
•
•
•
•
DSP Power Supplies  
Baseband Power Supplies  
Mobile Phones and Pagers  
Portable Electronic Equipment  
•
Output Voltage Pairs: 1.2V/1.5V and  
1.2V/1.575V  
•
•
•
•
•
•
Dynamic Output Voltage Selection  
±3% Output Voltage Accuracy  
Output Currents up to 250mA  
2.7V to 5.5V Input Range  
DESCRIPTION  
The LM2770 is a switched capacitor step-down  
regulator that is ideal for powering low-voltage  
applications in portable systems. The LM2770 can  
supply load currents up to 250mA and operates over  
an input voltage range of 2.7V to 5.5V. This makes  
the LM2770 a great choice for systems powered by  
1-cell Li-Ion batteries and chargers. The output  
voltage of the LM2770 can be dynamically switched  
between two output levels with a logic input pin.  
Output voltage pairs currently available include  
1.2V/1.5V and 1.2V/1.575V. Other pairs of voltage  
options can be developed upon request.  
Low-Supply-Current Sleep Mode  
55µA Quiescent Supply Current in Full-Power  
Mode  
•
•
•
•
Soft-Start  
Short-Circuit Protection in Full-Power Mode  
Current-Limit Protection in Sleep Mode  
WSON-10 Package (3mm × 3mm × 0.8mm)  
Typical Application Circuit  
100%  
V
:1.2V/1.5V  
OUT  
or 1.2V/1.575V  
LM2770  
LM2770  
90%  
Dynamic scaling w/ V  
SEL  
V
IN  
= 2.7V to  
5.5V  
80%  
70%  
60%  
50%  
I
up to 250 mA  
OUT  
V
V
OUT  
IN  
9
6
C
C
IN  
OUT  
10 PF  
10 PF  
40%  
LDO  
C1+  
30%  
20%  
8
H: V  
OUT-H  
L: V  
OUT-L  
V
SEL  
EN  
1
2
C1  
1 PF  
V
= 1.5V  
OUT  
10%  
0%  
H: ON  
L: Shutdown  
7
3
I
= 100 mA  
OUT  
C1-  
C2+  
3.0  
3.5  
4.0  
4.5  
(V)  
5.0  
5.5  
H: Sleep  
L: Full-power  
SLEEP  
GND  
V
IN  
10  
4
C2  
1 PF  
5
C2-  
Capacitors: 1 PF - TDK C1005X5R0J105K  
10 PF - TDK C2012X5R0J106M  
or equivalent  
Figure 1.  
Figure 2. LM2770 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 © 2004–2013, Texas Instruments Incorporated  
1234567...20

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LM2770SDX-12157/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM2770SD-12157/NOPB TI

完全替代

 SWITCHED CAPACITOR REGULATOR, 925kHz SWITCHING FREQ-MAX, DSO10, 3 X 3 MM, 0.80 MM HEIGHT,

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