The CXSD62375 is a voltage-mode buck PWM converter capable of driving up to 3A loads over a wide input supply range. High efficiency is obtained through the use of a low RDS(ON) P-channel power switch. The internal compensation makes feedback control have excellent line and load regulation characteristics without external designs. It uses a fixed switching frequency of 300KHz. The output voltage is 3.3V, 5V and an user-programmable version via an external resistive voltage divider. The built-in soft-start can reduce inrush current on the input source at turn on. The device also has built-in current-limit, thermal shutdown, under-voltage lockout and an ON/OFF logic-control that can power down the regulator to a shutdown mode. When current limit function occurred and VFB is down to 0.3V below, the device changes switching frequency to 120KHz to protect IC from damage. CXSD62375 is available in SOP-8 package.
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目录
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产品概述 返回TOP
The CXSD62375 is a voltage-mode buck PWM converter capable of driving up to 3A loads over a wide input supply range. High efficiency is obtained through the use of a low RDS(ON) P-channel power switch. The internal compensation makes feedback control have excellent line and load regulation characteristics without external designs. It uses a fixed switching frequency of 300KHz. The output voltage is 3.3V, 5V and an user-programmable version via an external resistive voltage divider. The built-in soft-start can reduce inrush current on the input source at turn on. The device also has built-in current-limit, thermal shutdown, under-voltage lockout and an ON/OFF logic-control that can power down the regulator to a shutdown mode. When current limit function occurred and VFB is down to 0.3V below, the device changes switching frequency to 120KHz to protect IC from damage. CXSD62375 is available in SOP-8 package.
产品特点 返回TOP
„ Voltage Mode Asynchronous PWM Control
„ 3.3V, 5V and Adjustable Output Version
„ Operation Voltage can be up to 20V
„ Adjustable Version Output Voltage Range, 0.8V to 16V±2%
„ 300KHz Fixed Frequency Internal Oscillator
„ Built-in Switching Transistor on Chip
„ 3A Output Load Current „ Thermal Shutdown and Current Limit Protection
„ ON/OFF Shutdown Control
„ Iq of Low Power Standby Mode 1μA
„ Available in SOP-8 Packages
应用范围 返回TOP
„ Simple high-efficiency step-down regulator
„ On-card switching regulators
„ Positive to negative converter
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
相关芯片选择指南 返回TOP 更多同类产品.....
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Asynchronous Step Down Converter |
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|
Part NO. |
Vin(V) min. |
Vin(V) max. |
IOUT (A) |
FSW (kHz) |
FB(V) |
Duty max(%) |
IQ (μA) |
Note |
Package |
|
4.5 |
24 |
1.5 |
1400 |
0.92 |
65 |
1300 |
BS, IN, LX,GND, FB, COMP, EN, SS |
SOP-8(FD) |
|
|
5.5 |
20 |
3 |
300 |
0.8 |
100 |
1000 |
FB, EN, NC, IN, NC, LX, GND, NC |
SOP-8 |
|
|
5 |
14 |
2 |
500 |
0.8 |
100 |
300 |
GND, IN, GND, FB, COMP, EN, LX, LX |
SOP-8 |
|
|
4.75 |
20 |
2 |
500 |
1.2 |
100 |
1000 |
IN, EN, COMP, FB, NC, GND, LX, NC |
SOP-8 |
|
|
4.75 |
20 |
3 |
500 |
1.2 |
100 |
1000 |
IN, EN, COMP, FB, NC, GND, LX, NC |
SOP-8(FD) |
|
|
4.75 |
20 |
2.5 |
500 |
0.8 |
100 |
1000 |
IN, EN, COMP, FB, NC, GND, LX, NC |
SOP-8 |
|
|
4.75 |
20 |
2 |
380 |
1.22 |
100 |
1000 |
NC, IN, LX, GND, FB, EN, SS |
SOP-8 |
|
|
4.75 |
20 |
2 |
380 |
0.92 |
100 |
1000 |
NC, IN, LX, GND, FB, COMP, EN, SS, NC*3IN, LX, GND, FB, COMP, EN, SS |
SOP-8/MSOP-10(FD) |
|
|
4.75 |
20 |
3 |
380 |
1.22/0.92 |
100 |
1000 |
NC, IN, LX, GND, FB, COMP, EN, SS |
SOP-8(FD) |
|
|
3 |
5.5 |
2 |
ADJ |
0.8 |
100 |
2000 |
COMP, GND, EN, IN, LX*2, FQEQ, FB |
SOP-8 |
|
|
3 |
5.5 |
4 |
ADJ |
0.8 |
100 |
2000 |
COMP, GND, EN, IN, LX, LX, FQEQ, FB |
SOP-8(FD) |
|
|
4.5 |
24 |
2 |
380 |
1.22/0.92 |
90 |
1500 |
BS, IN, LX, GND, FB, COMP, EN, SS |
SOP-8/MSOP-10(FD) |
|
|
4.5 |
24 |
3 |
380 |
1.22/0.92 |
90 |
1500 |
BS, IN, LX, GND, FB, COMP, EN, SS |
SOP-(FD)/DIP-8/MSOP-10(FD) |
|
|
4.75 |
24 |
2 |
380 |
1.22/0.92 |
90 |
1500 |
SS/NC, BS, IN, LX, GND, FB, COMP, EN |
SOP-8 |
|
|
4.5 |
28 |
3 |
ADJ |
0.8 |
90 |
170 |
LX, EN, COMP, FB, GND, FREQ, IN, BS Dutymax = 1 - (TOFFmin * 900K) |
SOP-8(FD)/DIP-8/TDFN3X3-8 |
|
|
7 |
18 |
4 |
400 |
0.8 |
90 |
700 |
EN, BS, IN, LX, VCC, GND, FB, COMP |
SOP-8(FD) |
|
|
6.5 |
24 |
2 |
385 |
1.22/0.92 |
90 |
1500 |
BS, IN, LX, GND, FB, COMP, EN, SS |
SOP-8 |
|
|
4.5 |
28 |
3 |
380 |
1.22 |
90 |
1500 |
BS, IN, LX, GND, FB, COMP, EN, SS |
SOP-8(FD) |
|
