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English快速瞬态响应低占空比CXSD62547持续时间COT脉冲宽度调制控制同步整流开关轻载自动高效间断运行方式
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7.相关产品
产品概述 返回TOP
proprietary Instant-PWM™ fast-response, constant-on-time (COT) PWM control method supports high input/output voltage ratios (low duty cycles), and fast transient response while maintaining a near constant operating frequency over line, load and output voltage ranges. This control method provides stable operation without complex compensation and even with low ESR ceramic capacitors.The CXSD62547 is a high efficiency synchronous step-down DC/DC regulator featuring internal power and synchronous rectifier switches capable of delivering 6A of continuous output current and up to 12A peak output current over a wide input voltage range of 4V to 28V.Internal 40mΩ power and 20mΩ synchronous rectifier switches provide excellent efficiency over a range of applications, especially for low output voltages and low duty cycles. Cycle-by-cycle current limit, input under voltage lock-out, internal soft-start, output under- and over-voltage protection, and thermal shutdown provide safe operation in all operating conditions.The CXSD62547 is available in a compact QFN3X3-12 package.
产品特点 返回TOP
· Fast Transient Response
· Wide Input Voltage Range: 4-28V
· Internal 40mΩ Power Switch and 20mΩ Synchronous Rectifier
· 6A Continuous 12A Peak Output Current Capability
· Accurate Feedback Reference Voltage: 0.6V ±1.5%
· Pseudo-Constant 800kHz Operating Frequency
· Automatic High Efficiency Discontinuous Operating Mode at Light Loads
· Internal 600μS Soft-Start Limits Inrush Current
· Programmable Valley Current Limit
· Power Good Indicator
· Output Discharge Function
· Cycle-By-Cycle Current Limit
· Hiccup Mode Output Short-Circuit and Over-Voltage Protection
· Over Temperature Protection
· Compact Package: QFN3x3-12
应用范围 返回TOP
· Portable Computing
· LCD-TV
· Set Top Box
· High Power Access Points
技术规格书（产品PDF) 返回TOP
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
产品封装图 返回TOP
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电路原理图 返回TOP
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Single Output Step Down Regulator (Integrated Switch) |
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|
Number |
Vin (min) (V) |
Vin (max) V |
UVLO (V) |
Iout (max) (A) |
Vout (min) (V) |
Out. Voltage Acurracy |
Quiescent Current Typ (uA) |
Shutdown Current (uA) |
MOSFET (Ron H) (mΩ) |
MOSFET (Ron L) (mΩ) |
|
2.5 |
5.5 |
2.5 |
3.5 |
0.6 |
±1.5% |
18 |
0.1 |
55 |
35 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
260 |
170 |
|
|
2.5 |
5.5 |
2.4 |
1.2 |
0.6 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
|
2.5 |
5.5 |
2.4 |
0.6 |
0.6 |
±1.5% |
50 |
0.1 |
300 |
200 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
|
2.5 |
5.5 |
2.5 |
1 |
3.3 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
|
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±1.5% |
50 |
0.1 |
180 |
120 |
|
|
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±1.5% |
50 |
0.1 |
180 |
120 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
230 |
150 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
60 |
0.1 |
260 |
170 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
60 |
0.1 |
260 |
170 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
60 |
0.1 |
260 |
170 |
|
|
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±2% |
90 |
0.1 |
180 |
120 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
90 |
0.1 |
250 |
200 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
260 |
170 |
|
|
2.5 |
6.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
260 |
170 |
|
|
2.5 |
6.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
260 |
170 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
270 |
160 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
230 |
150 |
|
|
2.7 |
5.5 |
2.5 |
3 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
|
2.7 |
5.5 |
2.5 |
3 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
|
2.7 |
5.5 |
2.65 |
3 |
0.6 |
±2% |
55 |
0.1 |
100 |
80 |
|
|
2.7 |
5.5 |
2.65 |
3 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
|
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±2% |
60 |
0.1 |
210 |
130 |
|
|
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
|
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
120 |
90 |
|
|
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
|
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
|
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
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