降压型直流电源变换器芯片(常规型) XL2596
| 价 格： | 面议 | |
| 型号/规格： | XL2596 | |
| 品牌/商标： | XLSEMI |
| 降压型直流电源变换器芯片(常规型) | |||||
| 产品型号 | 输入电压 | 输出电流 | 开关频率 | 电压版本 | 封装类型 |
| XL1507 | 4.5V ~ 40V | 3A | 150KHz | Adj (1.23V)/3.3V/5V/12V | TO252-5L |
| XL1509 | 4.5V ~ 40V | 2A | 150KHz | Adj (1.23V)/3.3V/5V/12V | SOP8L |
| XL2596 | 4.5V ~ 40V | 3A | 150KHz | Adj (1.23V)/3.3V/5V/12V | TO263-5L/TO220-5L |
| XL2576 | 4.5V ~ 40V | 3A | 52KHz | Adj (1.23V)/3.3V/5V/12V | TO263-5L/TO220-5L |
| XL2576P | 4.5V ~ 40V | 2A | 52KHz | Adj (1.23V) | SOP8-EP |
Features
Wide 4.5V to 40V Input Voltage Range
3.3V,5V,12V, and adjustable versions
Output Adjustable from 1.23V to 37V
Maximum Duty Cycle 100%
Minimum Drop Out 1.5V
Fixed 150KHz Switching Frequency
3A Constant Output Current Capability
Internal Optimize Power Transistor
High efficiency
Excellent line and load regulation
TTL shutdown capability
ON/OFF pin with hysteresis function
Built in thermal shutdown function
Built in current limit function
Built in second current limit function
Available in TO-220,TO-263 packages
Applications
LCD Monitor and LCD TV
Digital Photo Frame
Set-up Box
ADSL Modem
Telecom / Networking Equipment
General Description
The XL2596 is a 150 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 3A load with high
efficiency, low ripple and excellent line and
load regulation. Requiring a minimum
number of external components, the regulator
is simple to use and include internal
frequency compensation and a
fixed-frequency oscillator.
The PWM control circuit is able to adjust the
duty ratio linearly from 0 to 100%. An enable
function, an over current protection function
is built inside. When second current limit
function happens, the operation frequency
will be reduced from 150KHz to 50KHz. An
internal compensation block is built in to
minimize external component count.
Figure1. Package Type of XL2596
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降压型直流电源变换器芯片(常规型) XL1509
信息内容：降压型直流电源变换器芯片(常规型) 产品型号 输入电压 输出电流 开关频率 电压版本 封装类型 XL1507 4.5V ~ 40V 3A 150KHz Adj (1.23V)/3.3V/5V/12V TO252-5L XL1509 4.5V ~ 40V 2A 150KHz Adj (1.23V)/3.3V/5V/12V SOP8L XL2596 4.5V ~ 40V 3A 150KHz Adj (1.23V)/3.3V/5V/12V TO263-5L/TO220-5L XL2576 4.5V ~ 40V 3A 52KHz Adj (1.23V)/3.3V/5V/12V TO263-5L/TO220-5L XL2576P 4.5V ~ 40V 2A 52KHz Adj (1.23V) SOP8-EP Featuresn Wide 4.5V to 40V Input Voltage Rangen 3.3V,5V,12V, and adjustable versionsn Output Adjustable from 1.23V to 37Vn Maximum Duty Cycle 100%n Minimum Drop Out 1.5Vn Fixed 150KHz Switching Frequencyn 2A Constant Output Current Capabilityn Internal Optimize Power Transistorn High efficiencyn Excellent line and load regulationn TTL shutdown capabilityn ON/OFF pin with hysteresis functionn Built in thermal shutdown functionn Built in current limit functionn Built in second current limit functionn Available in SOIC8 packageApplicationsn LC...
降压型直流电源变换器芯片(常规型) XL1507
信息内容：Features Wide 4.5V to 40V Input Voltage Range 3.3V,5V,12V, and adjustable versions Output Adjustable from 1.23V to 37V Maximum Duty Cycle 100% Minimum Drop Out 1.5V Fixed 150KHz Switching Frequency 3A Constant Output Current Capability Internal Optimize Power Transistor High efficiency Excellent line and load regulation TTL shutdown capability ON/OFF pin with hysteresis function Built in thermal shutdown function Built in current limit function Built in second current limit function Available in TO-252 packageApplications LCD Monitor and LCD TV Digital Photo Frame Set-up Box ADSL Modem Telecom / Networking EquipmentGeneral DescriptionThe XL1507 is a 150 KHz fixed frequencyPWM buck (step-down) DC/DC converter,capable of driving a 3A load with highefficiency, low ripple and exc...
