CXSD6209A internal synchronous power switches provide high efficiency without
the use of an external Schottky diode. At light loads, regulators operate in low frequency to
maintain high efficiency and low output ripple. Current mode control provides tight load transient response and cycle-by-cycle current limit
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[ 产品资料下载 ]
目录 1.产品概述 2.产品特点 一,产品概述(General Description) The CXSD6209A is a current mode monolithic buck switching regulator. Operating with an input range of 3.6-40V, the CXSD6209A delivers 2A of continuous output current with two integrated N-Channel MOSFETs. and cycle-by-cycle current limit. 3.6V to 40V operating input range 1.Distributed Power Systems 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！ SOP8 Name Description 1 SW SW is the switching node that supplies power to the output. Connect the output LC filter from SW 2 BST Bootstrap pin for top switch. A 0.01uF or larger capacitor should be connected between this pin 3 VD Output of the internal LDO. A capacitor of 2.2uF or larger should be connected at VD to ground. 4 FB Output feedback pin. FB senses the output voltage and is regulated by the control loop to 0.8V. 5 NC 6 NC 7 EN Drive EN pin high to turn on the regulator and low to turn off the regulator. 8 VIN Input voltage pin. VIN supplies power to the IC. Connect a 3.6V to 40V supply to VIN and bypass 9 GND Ground. Item Symbol Condition Min. Typ. Max. Units VIN Undervoltage Lockout VIN_MIN VIN falling 3.6 V VIN Undervoltage Lockout VIN_MIN_HYST VIN rising 160 mV Shutdown Supply Current ISD VEN=0V 0.07 μA Supply Current IQ VEN=5V, VFB=1V 74 μA Feedback Voltage VFB 3.6V 0.8 V Error Amplifier GEA Vcomp = 1.5V 250 uA/V Maximum COMP Sourcing ICOMP_MAX_OUT Vcomp = 1V 25 uA Maximum COMP Sinking ICOMP_MAX_IN Vcomp = 3V 25 uA Top Switch Resistance RDS(ON)T 126 mΩ Bottom Switch Resistance RDS(ON)B 63 mΩ Top Switch Leakage Current ILEAK_TOP VIN=40V, VEN=0V, 0.2 uA Bottom Switch Leakage ILEAK_BOT VIN= VSW = 40V, VEN=0V 0.7 uA Top Switch Current Limit ILIM_TOP Minimum Duty Cycle 4.5 A Switch Frequency FSW RRT = 180k 120 kHz Minimum On Time TON_MIN 117 ns Minimum Off Time TOFF_MIN VFB=0V 112 ns EN shut down threshold VEN_TH VEN falling, FB=0V 1.2 V EN shut down hysteresis VEN_HYST VEN rising, FB=0V 120 mV Thermal Shutdown TTSD 132 °C 八,相关产品 更多同类产品...... 高压PMU/tongbu target=_blank class=infotextkey>同步DC-DC降压IC 型号 输入耐压 输出电压 输出电流 反馈电压 工作频率 静态工 作电流 待机电流 封装 8V-35V 可调输出 带线损补偿 2A/带可调恒流设置 1.21V 130K 95% 1.3mA 112uA SOP-8 8V-35V 可调输出/带线损 补偿带使能端 2A/带可调恒流设置 1.21V 130K 93% 1.3mA SOP-8 4.5-20V 可调输出 2.0A 0.923V 340K 95% 1mA 6uA SOP-8 CXSD61046A/B 4.5-27V 可调输出 2.0A/2.5A 0.925V 340K 96% 1.3mA 0.3uA SOP-8 8V--35V 可调输出 带线损补偿 2.0A/带可调限流保护 1.2V 100-500K 93% 750uA 110uA ESOP-8 CXSD61048A 10V--35V 可调输出 带线损补偿 2.5A/带可调限流保护 1.2V 100-500K可调 93% 15mA 110uA SOP-8 CXSD61048B 8V-35V 可调输出 带线损补偿 2.8A/带可调限流保护 1.21V 100-500K可调 93% 15mA 110uA SOP-8 CXSD61048C 8V-35V 可调输出 带线损补偿 3.2A/带可调限流保护 1.21V 100-500K可调 93% 15mA 110uA SOP-8 4.6-22V 可调输出 3.0A 0.923V 340K 95% 55uA 1uA ESOP8 CXSD61047A 4.5-27V 可调输出 3.0A 0.925V 340K 93% 1.3mA 0.3uA ESOP8 CXSD61047B 4.5V-23V 可调输出 3.5A 0.925V 340K 96% 2.5mA ESOP-8 8V-35V 可调输出 带线损补偿 扩流4.5A带 可调限流保护 1.21V 100-500K可调 95% 14mA 100uA ESOP8 3.6-40V 可调输出 2.0A 0.8V 440K 94% 74uA 0.07uA ESOP-8 4.5-20V 可调输出 4.0A 0.923V 340K 95% 1.6mA 6uA ESOP8 3.5-23V 可调输出 2.0A 0.6V 600K 96% 400uA 1uA SOT-26 4.5-17V 可调输出 2.0A 0.6V 600K 96% 400uA 1uA SOT-26 CXSD61055A 4.5V-23V 可调输出 2.0A 0.8V 600K 92% 800uA SOT-26 CXSD61055B 3.3-17V 可调输出 2.0A 0.6V 600K 96% 400uA 4uA SOT-26 4.5-26V 可调输出 1.2A 0.8V 1.4M 94% 600uA 1uA SOT-26 4.0-42V 可调输出 1.5A 0.8V 650K 91% 600uA 6uA SOT-26
3.应用范围 4.下载产品资料PDF文档
5.产品封装图 6.电路原理图
7.功能概述 8.相关产品
The CXSD6209A internal synchronous power switches provide high efficiency without
the use of an external Schottky diode. At light loads, regulators operate in low frequency to
maintain high efficiency and low output ripple. Current mode control provides tight load transient response
The CXSD6209A guarantees robustness with short-circuit protection, thermal protection,
start-up current run-away protection, and input under voltage lockout.
The CXSD6209A is available in 8-pin ESOP package, which provides a compact solution with
minimal external components. The package has an exposed pad for low thermal resistance
二.产品特点(Features)
2A output current
Up to 94% efficiency
High efficiency (>78%) at light load
Internal Soft-Start
Fixed 120kHz Switching frequency
Input under voltage lockout
Available in thermally enhanced ESOP8 package
Start-up current run-away protection
Short circuit protection
Thermal protection
三,应用范围 (Applications)
2.Networking Systems
3.FPGA, DSP, ASIC Power Supplies
4.Green Electronics/ Appliances
5.Notebook Computers
四,下载产品资料PDF文档
Pin
to the output load.
and the SW pin to supply current to the top switch and top switch driver.
Connect a resistive divider at FB.
VIN to GND with a suitably large capacitor to eliminate noise on the input to the IC.
七,功能概述
Thershold
Hysteresis
Transconductance
Current
Current
VSW=0V
Current
voltage
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