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CM2593PGCS

CM2593PGCS

  • 厂商:

    CHAMP

  • 封装:

  • 描述:

    CM2593PGCS - 2A Step Down VOLTAGE REGULATOR - Champion Microelectronic Corp.

  • 详情介绍
  • 数据手册
  • 价格&库存
CM2593PGCS 数据手册
CM2593/P 2A Step Down VOLTAGE REGULATOR GENERAL DESCRIPTION The CM2593/P is a monolithic integrated circuit that provide all the active functions for a step-down switching regulator, capable of driving a 2A load without additional transistor component. Requiring a minimum number of external component, the board space can be saved easily. The external shutdown function can be controlled by TTL logic level and then come into standby mode. The internal ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ FEATURES ◆ ◆ 3.3V, 5V and adjustable output versions Adjustable version output voltage range, 1.23V to 37V +4% max over line and load condition SOP-8L packages Voltage mode non-synchronous PWM control Thermal-shutdown and current-limit protection ON/OFF shutdown control input Input voltage range up to 40V Output load current: 2A 150 kHz fixed frequency internal oscillator Low power standby mode Built-in switching transistor on chip compensation makes feedback control have good line and load regulation without external design. Regarding protected function, thermal shutdown is to prevent over temperature operating from damage, and current limit is against over current operating of the output switch. The CM2593/P operates at a switching frequency of 150Khz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Other features include a guaranteed +4% tolerance on output voltage under specified input voltage and output load conditions, and +15% on the oscillator frequency. The output version included fixed 3.3V, 5V, and an adjustable type. The packages are available in a standard 8-lead SOP8. APPLICATIONS Simple High-efficiency step-down(buck) regulator Efficient pre-regulator for linear regulators On-card switching regulators Battery / Car Charger Positive to negative converter Digital Still and Video Cameras TYPICAL APPLICATIONS Figure 1. Basic Application Circuit with CM2593/P fixed version 2007/01/25 Rev. 1.4 Champion Microelectronic Corporation Page 1 CM2593/P 2A Step Down VOLTAGE REGULATOR PIN CONFIGURATION Sop08 Top View(CM2593) Sop08 Top View(CM2593P) BLOCK DIAGRAM 2007/01/25 Rev. 1.4 Champion Microelectronic Corporation Page 2 CM2593/P 2A Step Down VOLTAGE REGULATOR PIN DESCRIPTION Pin No. 1 2 3 4 5-8 Symbol Description VIN Out FB SD GND Operating voltage input Switching output Output voltage feedback control ON/OFF Shutdown Ground Pin ORDERING INFORMATION CM2593/P X X X Lead Free Blank: Normal G: Lead Free package Output Voltage C: Adjustable SC: 3.3V ZJC: 5V Package Type S: SOP-O8 package ABSOLUTE MAXIMUM RATINGS Symbol VCC VSD VFB VOUT PD TST TOP VOP θJa θJc Parameter Supply Voltage ON/OFF Pin input voltage Feedback Pin voltage Output voltage to Ground Power dissipation Storage temperature Operating temperature Operating voltage Thermal Resistance Thermal Resistance Rating +45 -0.3 to +25 -0.3 to +25 -1 Internally limited -65 to +150 -40 to +125 +4.5 to +45 75 14 Unit V V V V W o o C C V °/W °/W 2007/01/25 Rev. 1.4 Champion Microelectronic Corporation Page 3 CM2593/P 2A Step Down VOLTAGE REGULATOR ELECTRICAL CHARACTERISTICS(All Output Voltage Versions) Unless otherwise specified, VIN=12V for 3.3V, 5V, adjustable version and VIN=24V for the 12V version. ILOAD = 0.2A Symbol IB B Parameter Feedback bias current Conditions VFB=1.3V (Adjustable version only) TJ=25℃ -40℃
CM2593PGCS
物料型号: - CM2593/P

器件简介: CM2593/P是一款集成单片电路,提供所有主动功能的降压开关稳压器,能够在不需要额外晶体管组件的情况下驱动2A负载。该器件需要最少数量的外部组件,可以节省板空间。外部关闭功能可以通过TTL逻辑电平控制,进入待机模式。内部补偿使得反馈控制拥有良好的线和负载调节,无需外部设计。保护功能包括热关机以防止过热损坏,电流限制以防止输出开关过流操作。CM2593/P的工作频率为150kHz,允许使用比低频开关稳压器更小尺寸的滤波组件。其他特性包括在规定的输入电压和输出负载条件下,输出电压保证有+4%的容差,振荡器频率为±15%。输出版本包括固定的3.3V、5V和可调类型。封装形式为标准的8引脚SOP8。

引脚分配: - 1号引脚VIN:操作电压输入 - 2号引脚Out:开关输出 - 3号引脚FB:输出电压反馈控制 - 4号引脚SD:ON/OFF关闭 - 5-8号引脚GND:地针

参数特性: - 供电电压:+45V - ON/OFF引脚输入电压:-0.3至+25V - 反馈引脚电压:-0.3至+25V - 输出电压至地:-1V - 功耗:内部限制 - 存储温度:-65至+150°C - 工作温度:-40至+125°C - 工作电压:+4.5至+45V - 热阻:75°C/W(JA)和14°C/W(JC)

功能详解: - VIN引脚是IC开关稳压器的正输入电源。必须在此引脚处放置合适的输入旁路电容器,以最小化电压瞬变并提供稳压器所需的开关电流。 - Out引脚是内部开关和电源输出。该引脚的电压在(+VIN - VSAT)和大约-0.5V之间切换,占空比约为VOUT / VIN。 - GND引脚是电路地。 - FB引脚完成反馈回路,通过感应稳定的输出电压。 - SD引脚允许使用逻辑电平信号关闭开关稳压器电路,从而将总输入电源电流降低到大约100μA。

应用信息: - 简单的高效降压(buck)稳压器 - 线性稳压器的高效预稳压器 - 数码相机和视频摄像机 - 板上开关稳压器 - 电池/车载充电器 - 正负转换器

封装信息: - 8引脚SOP(SO8) - 8引脚SOP带电源垫(PS08)
CM2593PGCS 价格&库存

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