AP1184K5-L-13

厂商：
DIODES
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描述：
AP1184K5-L-13 - 4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR - Diodes Incorporat...

数据手册：

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数据手册
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AP1184K5-L-13 数据手册

AP1184 4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Features • • • • • • • • 0.85V maximum dropout voltage at 4A load current Built-in Thermal shutdown Output current limiting Adjustable or fixed output voltage 1.5V, 1.8V, 2.5V, 3.3V, 5.0V Fast transient response Good noise rejection Packages: SOP-8L, TO220-5L and TO263-5L Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) General Description AP1184 is a 4A regulator with extremely low dropout voltage. This product is specifically designed to provide well regulated supply for applications requiring 2.8V or lower voltages from 3.3V ATX power supplies where high efficiency of the switch can be achieved without the cost and complexity associated with switching regulator. One such application is the new graphic chipsets that requires anywhere from 2.4V to 2.7V supply. Ordering Information AP1184 XX - X Package S:SOP-8L K5:TO263-5L T5:TO220-5L Vout Blank : Adj 15 = 1.5V 18 = 1.8V 25 = 2.5V 33 = 3.3V 50 = 5.0V X X Lead Free L : Lead Free Packing -U : Tube -13 : Taping Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free Tube/Bulk Package Packaging Part Number Code (Note 2) Quantity Suffix S K5 T5 SOP-8L TO263-5L TO220-5L 100 50 50 -U -U -U 13” Tape and Reel Part Number Quantity Suffix 2500/Tape & Reel 800/Tape & Reel NA -13 -13 NA Lead-free Lead-free AP1184S AP1184K5 AP1184T5 Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AP1184 Rev. 1 1 of 12 www.diodes.com MARCH 2007 © Diodes Incorporated AP1184 4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Pin Assignments Adj(GND) Vsense Vctrl Vin . 1 2 3 4 FRONT VIEW 8 7 6 5 NC Vout Vout Vin 5 4 3 2 1 Tab is Vout Vin Vctrl Vout Adj(GND) Vsense SOP-8L FRONT VIEW 5 4 3 2 1 Tab is Vout Vin Vctrl Vout Adj(GND) Vsense TO263-L TO220-5L Pin Descriptions Pin Numbers with standard type are for TO220-5L, TO263-5L packages, and those with boldface type are for SOP-8L Name Adj (GND) Vsense I/O I Vin I Vctrl NC Vout I O Description A resistor divider from this pin to the Vout pin and ground sets the output voltage. (GND only for fixed mode) This pin is the positive side of the reference that allows remote load sensing to achieve excellent load regulation. A minimum of 10uF capacitor must be connected from this pin to ground to insure stability. The input of the regulator. Typically a large storage capacitor is connected from this pin to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be higher than Vout in order for the device to regulate. This pin is the supply pin for the internal control circuit as well as the base drive for the pass transistor. This pin must always be higher than the Vout pin in order to regulate the device. A minimum of 100uF capacitor must be connected from this pin to ground to insure stability. No connection The output of the regulator. A minimum of 100uF capacitor must be connected from this pin to ground to insure stability. AP1184 Rev. 1 2 of 12 www.diodes.com MARCH 2007 © Diodes Incorporated AP1184 4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Block Diagram Vin Vctrl + + CURRENT LIMIT THERMAL SHUTDOWN 1.25V + Adj + Vout Vsense Typical Application Circuit 3.3V + 470uF G ND Vsense 5V + 470uF Vin Vctrl . NC Vout 2.5V/4A Vout Vin + 4 70uF AP1184-2.5V Absolute Maximum Ratings Symbol VIN Vctrl PD TST TOP Parameter Input Voltage Control Input voltage Power dissipation Storage temperature Range Operation Junction Temperature Range Rating 16 18 Internally limited -65 to +150 0 to +125 Unit V V o o C C AP1184 Rev. 1 3 of 12 www.diodes.com MARCH 2007 © Diodes Incorporated AP1184 4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Electrical Characteristics ( Under Operating Conditions ) o o Unless otherwise specified, these specifications apply over, Cin = 1uF, Cout = 10uF, and Tj = 0 to 150 C. Typical value refer to TA = 25 C. Vout = Vsense. Sym. Parameter Test Condition Io =10mA, TA = 25 C, (Vin-Vout) = 0.7V, AP1184-Adj Vctrl = VIN+1V o I = 10mA, VOUT+0.7V

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AP1184K5-L-13

物料型号： - AP1184

器件简介： - AP1184是一款4A超低 dropout 正电压可调或固定模式调节器，专为需要从3.3V ATX电源提供2.8V或更低电压的应用设计，具有0.85V的最大dropout电压。

引脚分配： - Adj (GND)：通过该引脚与Vout引脚和地之间的电阻分压器设置输出电压（固定模式下仅GND）。 - Vsense：此引脚是参考的正侧，允许远程负载感应以实现出色的负载调节。必须在此引脚和地之间连接至少10uF的电容器以确保稳定性。 - Vin：调节器的输入。通常在此引脚和地之间连接大容量存储电容器，以确保在负载瞬态响应期间输入电压不会低于最小dropout电压。 - Vctrl：内部控制电路的供电引脚以及通晶体管的基极驱动。此引脚必须始终高于Vout引脚以调节设备。 - NC：无连接。 - Vout：调节器的输出。必须在此引脚和地之间连接至少100uF的电容器以确保稳定性。

参数特性： - 输入电压（VIN）：16V - 控制输入电压（Vctr）：18V - 功耗（PD）：内部限制 - 存储温度范围（TST）：-65至+150°C - 工作结温范围（ToP）：0至+125°C

功能详解： - AP1184调节器是一款5端设备，专门设计用于提供极低的dropout电压，类似于PNP型调节器，但没有PNP调节器由于基极电流导致的额外功耗。 - AP1184-ADJ可以通过添加两个外部电阻R1和R2在1.25V至15.5V的范围内编程到任何电压。 - AP1184具有真正的远程感应能力，允许在负载处而不是在设备处准确设置电压。

应用信息： - AP1184适用于需要从ATX电源提供5V和3.3V到主板的计算机主板等双输入应用，例如需要2.4V至2.7V供电的新图形芯片。

封装信息： - SOP-8L、TO220-5L和TO263-5L

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