CXSD62307是高效、高频同步降压DC-DC能够输出高达1.5A输出电流的稳压器IC。CXSD62307可以在2.3V到6V的宽输入电压范围内工作，并将主开关和同步开关与极低的R DS（开）集成在一起，以最小化传导损耗。非常适合为使用单电池锂离子电池的便携式设备供电输出电压可调低至0.6V。
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产品概述 返回TOP
regulator ICs capable of delivering up to 1.5A output currents.The CXSD62307 can
operate over a wide input voltage range from 2.3V to 6V and integrates main switch and synchronous switch with very low R DS(ON) to minimize the conduction loss. It is ideal for
powering portable equipment that runs from a single cell Lithium-Ion(Li+) battery.The
output voltage can be regulated as low as 0.6V.The CXSD62307 can also run at 100% duty
cycle for low dropout operation,extending battery life in portable system.This device offers
two operation modes,PWM mode and PFM mode switching control,which allows a high
efficiency over the wide range of the load. The CXSD62307 is offered in a low profile 5-pin
SOT package,and is available in an adjustable version.
产品特点 返回TOP
High Efficiency: Up to 96%
1.5MHz Constant Frequency Operation
1.5A Output Current
No Schottky Diode Required
2.3V to 6V Input Voltage Range
Adjustable Output Voltage Range Options
from 0.6V to V IN
100% Duty Cycle in Dropout Operation
Low Quiescent Current: 35μA
Slope Compensated Current Mode Control for
Excellent Line and Load Transient Response
Short Circuit Protection
Thermal Fault Protection
Inrush Current Limit and Soft Start
<1μA Shutdown Current
SOT23-5 package
应用范围 返回TOP
Cellular and Smart Phones
Wireless and DSL Modems
PDAs
Portable Instruments
Digital Still and Video Cameras
Set Top Box
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电路原理图 返回TOP
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单输出降压转换器Single Output Step Down Regulator (Power Switch Integrated) |
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|
Part Number |
Function |
Vin(V) |
Iout |
Fsw |
VREF |
HSFET Ron(Ω) |
LSFET Ron(Ω) |
Special Function |
Constnt current |
Package |
|
高效同步降压 |
2～6 |
0.8A |
1.5MHz |
0.6V |
0.3 |
0.3 |
QR |
Int SS/Comp |
SOT23-5 |
|
|
高效同步降压 |
2～6 |
0.8A |
1.5MHz |
0.6V |
0.3 |
0.3 |
QR |
Int SS/Comp |
SOT23-5 |
|
|
高效同步降压 |
2.3～6 |
1.5A |
1.5MHz |
0.6V |
0.13 |
0.1 |
QR |
Int SS/Comp |
SOT23-5 |
|
|
CXSD62307L |
高效同步降压 |
2.3～6 |
1.3A |
1.5MHz |
0.6V |
0.13 |
0.1 |
QR |
Int SS/Comp |
SOT23-5 |
|
高效同步降压 |
2.3～6 |
1.3A |
1.5MHz |
0.6V |
0.15 |
0.12 |
QR |
Int SS/Comp |
DFN2x2-6 |
|
|
高效同步降压 |
2.3～6 |
2A |
1.5MHz |
0.6V |
0.1 |
0.09 |
QR |
Int SS/Comp |
DFN3x3-10 |
|
|
CXSD62309SP |
高效同步降压 |
2.3～6 |
2A |
1.5MHz |
0.6V |
0.1 |
0.09 |
QR |
Int SS/Comp |
SOP8 |
|
CXSD62309B/C/D |
高效同步降压 |
2.3～6 |
2A |
1.5MHz |
0.6V |
0.1 |
0.08 |
QR |
Int SS/Comp |
SOT23-6 |
|
高效同步降压 |
2.3～6 |
3A |
1.5MHz |
0.6V |
0.09 |
0.08 |
QR |
Int SS/Comp |
ESOP8 |
|
|
高效同步降压 |
4.5～18 |
1.2A |
1.2/0.6MHz |
0.923V |
0.15 |
0.1 |
QR |
Int SS/Comp |
SOT23-6 |
|
|
高效同步降压 |
4.5～18 |
2A |
1.2/0.6MHz |
0.923V |
0.1 |
0.09 |
QR |
Int SS/Comp |
SOP8 |
|
|
高效同步降压 |
4.5～18 |
3A |
1.2/0.6MHz |
0.923V |
0.08 |
0.08 |
QR |
Int SS/Comp |
ESOP8 |
|
|
高效同步降压 |
4～15 |
1A |
0.6MHz |
0.6V |
0.12 |
0.09 |
QR |
Int SS/Comp |
SOT23-6 |
|
|
高效同步降压 |
2～6 |
0.8A |
1.5MHz |
0.6V |
0.35 |
0.3 |
QR |
Int SS/Comp |
SOT23-5 |
|
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