CXSD62338是一个带有内部功率MOSFET的电流模式降压稳压器。该装置在4.5V至38V的宽输入电源范围内实现2A连续输出电流，具有良好的负载和线路调节。CXSD62338的开关频率为385kHz，电流模式操作提供快速的瞬态响应，便于环路稳定。
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[ CXSD62338 ]
目录
7.相关产品
产品概述 返回TOP
The CXSD62338 is a current-mode step-down regulator with an internal power MOSFET. This device achieves 2A continuous output current over a wide input supply range from 4.5V to 38V with excellent load and line regulations. The switching frequency of CXSD62338 is 385kHz and current mode operation provides fast transient response and eases loop stabilization.
The CXSD62338 is highly efficient with peak efficiency at 94% when in operation. In shutdown mode the regulator draws less than 18μA of supply current. Protection features include cycle-by-cycle current limit and thermal shutdown. The device also includes an internal soft-start and an external adjustable soft-start function to limit the inrush current and prevent the overshoot of output voltage.
The CXSD62338 is available in Green SOIC-8 (Exposed Pad) package and requires a minimum number of readily available external components to complete a 2A step-down DC/DC converter solution.
产品特点 返回TOP
• 2A Output Current
• High Efficiency: Up to 94%
• 4.5V to 38V Input Voltage Range
• < 18μA Shutdown Supply Current
• 100mΩ Internal Power MOSFET Switch
• Fixed 385kHz Switching Frequency
• Output Adjustable from 0.8V to 32V
• Cycle-by-Cycle Current Limit Protection
• Thermal Shutdown Protection
• Under-Voltage Lockout
• Stable with Low ESR Ceramic Capacitors
• -40℃ to +85℃ Operating Temperature Range
• Available in Green SOIC-8 (Exposed Pad) Package
应用范围 返回TOP
Distributed Power Systems
Battery Chargers
Flat Panel TVs
Set-Top Boxes
Pre-Regulator for Linear Regulators
Cigarette Lighter Powered Devices
DVD/PVR Devices
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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同步整流降压转换器 |
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Product |
CH |
Enable |
VCC (Min)V |
VCC (Max)V |
VOUT(V) |
IOUT(mA) |
Frequency (kHz) |
Iq (mA) |
SHDN Iq(μA) |
Package |
|
1 |
L |
3 |
5.5 |
adj |
3000 |
adj(300 to 2000) |
0.41 |
2 |
TDFN-3x3-10L |
|
|
1 |
H |
2.5 |
5.5 |
3.3/adj |
2000 |
1400 |
0.3 |
2 |
TDFN-3x3-10L |
|
|
1 |
H |
2.5 |
5.5 |
1.2/1.8/3.3/adj |
800 |
1600 |
0.03 |
1 |
TSOT-23-5 |
|
|
1 |
H |
2.5 |
5.5 |
1.2/1.8/3.3/adj |
800 |
1600 |
0.03 |
1 |
TSOT-23-5 TDFN-2x2-6L |
|
|
1 |
H |
2.5 |
5.5 |
1.2/1.8/3.3/adj |
2000 |
1400 |
0.055 |
2 |
TDFN-3x3-10L |
|
|
1 |
H |
2.7 |
5.5 |
adj |
1200 |
1600 |
0.03 |
1 |
TDFN-3x3-10L |
|
|
1 |
H |
2.7 |
5.5 |
adj |
1200 |
1600 |
0.03 |
1 |
TDFN-2x3-8L |
|
|
1 |
H |
2.5 |
5.5 |
adj |
600 |
6000 |
0.022 |
1 |
TDFN-2x2-6L |
|
|
1 |
H |
2.5 |
5.5 |
0.6/0.8/1.0/1.1/1.15 /1.2/1.5/1.6/1.8/2.5/ 2.8/3.0/3.3 |
600 |
6000 |
0.022 |
1 |
TDFN-2x2-6L WLCSP-1.21x0.81-6B |
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非同步降压转换器 |
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|
Product |
CH |
Enable |
VCC (Min)V |
VCC MAX(V) |
VOUT(V) |
IOUT(mA) |
Frequency (kHz) |
Iq (mA) |
SHDN Iq(μA) |
Package |
|
1 |
H |
4.5 |
28.5 |
adj |
3000 |
385 |
0.8 |
18 |
SOIC-8(EP) |
|
|
1 |
H |
4.5 |
28.5 |
adj |
3000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
|
|
1 |
H |
4.5 |
38 |
adj |
2000 |
385 |
0.8 |
18 |
SOIC-8(EP) |
|
|
1 |
H |
4.5 |
38 |
adj |
2000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
|
|
1 |
H |
4.5 |
18 |
adj |
3000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
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◀ 上一篇:内部功率MOSFET的电流模式降压稳压器CXSD62337宽输入电源4.5V至28.5V连续输出电流3A固定1.4MHz开关频率
下一篇▶:2A连续输出电流4.5V至38V的宽输入电源CXSD62339开关频率为1.4MHz高效高达91%内部功率MOSFET的电流模式降压稳压器
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