寻找DC-DC方案芯片
寻找19V输入+12v输出3A,+5v输出3A,+3.3v输出3A,-12v输出3A,希望大家多提供信息啊,谢谢!!
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三款芯片 我先上下参数
GT1500
3.3V, 5V, 12V and adjustable output versions
Adjustable version output voltage range, 1.23V to
28V +4% max over line and load condiction
Available in TO220-5L and TO263-5L packages
Voltage mode non-synchronous PWM control
Thermal-shutdown and current-limit protection
ON/OFF shutdown control input
Input voltage range up to 32V
Output load current: 3A
150 kHz fixed frequency internal oscillator
Low power standby mode
Built-in switching transistor on chip
GT1510
Input voltage:3.6V to 24V
Adjustable output voltage range :0.8V to VCC
Duty ratio:0%to 100%PWM control
Oscillation frequency:320KHz typ.
Soft-start, Current limit,Enable function
Thermal Shutdown function
Bulit-in internal 60mΩ P-channel DMOS
Up to 95%Efficiency
Output load current: 3A
SOP-8L Pb-Free Package
Low power standby mode
前两款是集成方案,下面这款是分立方案
PWM IC
GT1512
Input voltage:3.6V to 24V
Adjustable output voltage range :0.8V to VIN
Duty ratio:0% to 100% PWM control
Oscillation frequency:320KHz typ.
Soft-start, Current limit function
Thermal Shutdown function
+/-1.3%(+/- 2% over temp) internal reference.
Up to 95% Efficiency
Dedicated enable pin.
SOP-8L Pb-Free Package
Low power standby mode(<5uA)
如需样片和相应规格DEMO测试效率 请联系
paul343400@163.com 15989361319 QQ:278422596 (注明DC-DC)
GT1500
3.3V, 5V, 12V and adjustable output versions
Adjustable version output voltage range, 1.23V to
28V +4% max over line and load condiction
Available in TO220-5L and TO263-5L packages
Voltage mode non-synchronous PWM control
Thermal-shutdown and current-limit protection
ON/OFF shutdown control input
Input voltage range up to 32V
Output load current: 3A
150 kHz fixed frequency internal oscillator
Low power standby mode
Built-in switching transistor on chip
GT1510
Input voltage:3.6V to 24V
Adjustable output voltage range :0.8V to VCC
Duty ratio:0%to 100%PWM control
Oscillation frequency:320KHz typ.
Soft-start, Current limit,Enable function
Thermal Shutdown function
Bulit-in internal 60mΩ P-channel DMOS
Up to 95%Efficiency
Output load current: 3A
SOP-8L Pb-Free Package
Low power standby mode
前两款是集成方案,下面这款是分立方案
PWM IC
GT1512
Input voltage:3.6V to 24V
Adjustable output voltage range :0.8V to VIN
Duty ratio:0% to 100% PWM control
Oscillation frequency:320KHz typ.
Soft-start, Current limit function
Thermal Shutdown function
+/-1.3%(+/- 2% over temp) internal reference.
Up to 95% Efficiency
Dedicated enable pin.
SOP-8L Pb-Free Package
Low power standby mode(<5uA)
如需样片和相应规格DEMO测试效率 请联系
paul343400@163.com 15989361319 QQ:278422596 (注明DC-DC)
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你可以用双路同步整流的BuckTPS54383 107711218508493.pdf [/url和单路BUCK TPS54331][url=/bbs/u/68/107711218508546.pdf] 107711218508546.pdf
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