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LT3480MPMSE#PBF

更新时间： 2024-09-25 18:57:51
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
24页 376K
描述
LT3480 - 36V, 2A, 2.4MHz Step-Down Switching Regulator with 70µA Quiescent Current; Package: MSOP; Pins: 10; Temperature Range: -55°C to 125°C

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LT3480MPMSE#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：HTSSOP, TSSOP10,.19,20
针数：10Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：8.42其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.79 TO 20V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：36 V
最小输入电压：3.6 V标称输入电压：10 V
JESD-30 代码：S-PDSO-G10JESD-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：150 °C最低工作温度：-55 °C
最大输出电流：4 A封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP10,.19,20
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BUCK
最大切换频率：2700 kHz技术：BIPOLAR
温度等级：MILITARY端子面层：Matte Tin (Sn)
端子形式：GULL WING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：30
宽度：3 mmBase Number Matches：1

LT3480MPMSE#PBF 数据手册

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LT3480  
36V, 2A, 2.4MHz Step-Down  
Switching Regulator with  
70µA Quiescent Current  
FEATURES  
DESCRIPTION  
The LT®3480 is an adjustable frequency (200kHz to  
2.4MHz) monolithic buck switching regulator that ac-  
cepts input voltages up to 36V (60V maximum). A high  
efficiency 0.25 switch is included on the die along with  
a boost Schottky diode and the necessary oscillator, con-  
trol, and logic circuitry. Current mode topology is used  
for fast transient response and good loop stability. Low  
ripple Burst Mode operation maintains high efficiency at  
low output currents while keeping output ripple below  
15mV in a typical application. In addition, the LT3480 can  
further enhance low output current efficiency by draw-  
n
Wide Input Range:  
Operation from 3.6V to 36V  
Over-Voltage Lockout Protects Circuits  
through 60V Transients  
n
2A Maximum Output Current  
Low Ripple Burst Mode® Operation  
n
70µA I at 12V to 3.3V  
Q
IN  
OUT  
Output Ripple < 15mV  
n
n
n
n
n
n
n
n
n
n
Adjustable Switching Frequency: 200kHz to 2.4MHz  
Low Shutdown Current: I < 1µA  
Q
Integrated Boost Diode  
Synchronizable Between 250kHz to 2MHz  
Power Good Flag  
Saturating Switch Design: 0.25 On-Resistance  
0.790V Feedback Reference Voltage  
Output Voltage: 0.79V to 20V  
Soft-Start Capability  
Small 10-Lead Thermally Enhanced MSOP and  
(3mm × 3mm) DFN Packages  
ing bias current from the output when V  
is above 3V.  
OUT  
Shutdown reduces input supply current to less than 1µA  
while a resistorand capacitoronthe RUN/SSpinprovide a  
controlled output voltage ramp (soft-start). A power good  
flag signals when V  
reaches 86% of the programmed  
OUT  
output voltage. The LT3480 is available in 10-lead MSOP  
and 3mm × 3mm DFN packages with exposed pads for  
low thermal resistance.  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
Burst Mode is a registered trademark of Linear Technology Corporation. All other  
trademarks are the property of their respective owners.  
APPLICATIONS  
n
Automotive Battery Regulation  
n
Power for Portable Products  
n
Distributed Supply Regulation  
n
Industrial Supplies  
TYPICAL APPLICATION  
3.3V Step-Down Converter  
Efficiency  
V
V
3.3V  
2A  
100  
IN  
OUT  
4.5V TO 36V  
TRANSIENT  
TO 60V  
V = 5V  
OUT  
V
BD  
IN  
90  
80  
70  
60  
50  
RUN/SS  
BOOST  
OFF ON  
14k  
V
= 3.3V  
OUT  
0.47µF  
4.7µH  
V
C
SW  
LT3480  
GND  
4.7µF  
RT  
470pF  
PG  
316k  
V
= 12V  
40.2k  
SYNC  
FB  
IN  
L = 5.6µH  
F = 800 kHz  
100k  
22µF  
0
0.5  
1.0  
LOAD CURRENT (A)  
1.5  
2
3480 TA01  
3480 TA01b  
3480fe  
1
For more information www.linear.com/LT3480  
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