CXSD62329是1.6MHz、恒频、电流模式、同步、降压开关稳压器。它能从2.5V到5.5V的输入电压输出600mA的负载电流，输出电压低至0.6V。高开关频率使电感和电容的尺寸最小化。集成的功率mosfet和内部补偿使CXSD62329易于使用，并适合在一个紧凑的空间内的整体解决方案。CXSD62329还可以在100%工作循环下运行，以实现低功耗操作，延长便携式系统的电池寿命。
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产品概述 返回TOP
High switching frequency minimizes the sizes of inductor and capacitor. Integrated power MOSFETs and internal compensation make the CXSD62329 simple to use and fit the total solution in a compact space.
The CXSD62329 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. The synchronous architecture eliminates the external Schottky diode, and achieves over 90% of the power conversion efficiency. Low output ripple voltage at light load, 30μA quiescent current and less than 1μA of shutdown current make CXSD62329 the ideal power supply solution for portable applications.
CXSD62329 is available in both adjustable and fixed (1.2V, 1.8V, 3.3V) output voltage versions. It is in the Green TSOT-23-5 package. It is rated over the -40℃ to +85℃ temperature range.
产品特点 返回TOP
• High Efficiency: Up to 95%
• 30μA Low Quiescent Current at Light Load
• 600mA Output Current
• Input Voltage Range: 2.5V to 5.5V
• 1.2V, 1.8V & 3.3V Fixed & Adjustable Output Voltages
• 0.6V Reference Voltage
• 1.6MHz Constant Switching Frequency
• Less than 1μA Shutdown Current
• 100% Duty Cycle for Lowest Dropout
• No External Power MOSFETs and Schottky Diode Required
• Excellent Line Regulation & Load Transient Response
• -40℃ to +85℃ Operating Temperature Range
• Available in Green TSOT-23-5 Package
应用范围 返回TOP
GPS
MP3 Players
Cellular, Smart Phones
Digital Book Readers
Digital Still Cameras
Portable Instruments
Wireless and DSL Modems
Battery Powered Equipments
Microprocessor, DSP Power Supplies
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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 |
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|
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 |
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|
1 |
H |
2.7 |
5.5 |
adj |
1200 |
1600 |
0.03 |
1 |
TDFN-2x3-8L |
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1 |
H |
2.5 |
5.5 |
adj |
600 |
6000 |
0.022 |
1 |
TDFN-2x2-6L |
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|
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) |
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1 |
H |
4.5 |
28.5 |
adj |
3000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
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|
1 |
H |
4.5 |
38 |
adj |
2000 |
385 |
0.8 |
18 |
SOIC-8(EP) |
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|
1 |
H |
4.5 |
38 |
adj |
2000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
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1 |
H |
4.5 |
18 |
adj |
3000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
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◀ 上一篇:2.5V至5.5V的输入电压1.5MHz恒定频率高效单片同步降压稳压器CXSD62328提供高达2A输出负载电流强制连续脉宽调制模式操作
下一篇▶:输出600mA负载电流1.6MHz恒频电流模式同步降压开关稳压器CXSD62330输入电压2.5V至5.5V负载瞬态响应30μA低静态电流
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