RT8064ZSP

厂商：
RICHTEK(台湾立锜)
封装：
SOIC-8
描述：
IC REG BUCK ADJUSTABLE 2A 8SOP

数据手册：

下载RT8064ZSP.pdf

立即购买

详情介绍
数据手册
价格&库存

RT8064ZSP 数据手册

® RT8064 2A, 2MHz, Synchronous Step-Down Converter General Description Features The RT8064 is a simple, easy-to-use current mode controlled 2A synchronous step-down DC-DC converter with an input supply voltage range from 2.7V to 5.5V. The device built-in an accurate 0.8V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high  efficiency in both WDFN-8L 3x3 and SOP-8 (Exposed Pad) packages.  The RT8064 operates in automatic PSM that maintains high efficiency during light load operation. The device features cycle-by-cycle current-limit protection to prevent the device from the catastrophic damage in output short circuit, over-current or inductor saturation. Adjustable softstart function prevents inrush current during start-up. The device also features input under-voltage lockout, output under-voltage protection, and over-temperature protection to provide safe and smooth operation in all operating conditions.              Ordering Information  RT8064  Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) Note : 100% Duty Cycle for Lowest Dropout Power Saving Mode for Light Loads Adjustable Frequency : 200kHz to 2MHz 0.8V Reference Allows Low Output Voltage Enable Function External Soft-Start Power Good Function Input Under-Voltage Lockout Protection Output Under-Voltage Protection Over-Temperature Protection RoHS Compliant and Halogen Free Applications  Package Type SP : SOP-8 (Exposed Pad-Option 2) QW : WDFN-8L 3x3 (W-Type) Input Voltage Range from 2.7V to 5.5V Ω FETs Integrated 180mΩ Ω and 120mΩ LCD TVs and Monitors Notebook Computers Distributed Power Systems IP Phones Digital Cameras Marking Information RT8064ZSP RT8064ZSP : Product Number RT8064 ZSPYMDNN YMDNN : Date Code Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Copyright © 2020 Richtek Technology Corporation. All rights reserved. DS8064-08 December 2020 RT8064ZQW 28 : Product Code 28 YM DNN YMDNN : Date Code is a registered trademark of Richtek Technology Corporation. www.richtek.com 1 RT8064 Pin Configuration (TOP VIEW) SS 2 EN 3 VIN 4 GND 9 8 PGOOD 7 FB 6 RT 5 COMP SS EN VIN LX SOP-8 (Exposed Pad) 8 1 3 GND COMP 6 4 9 5 2 7 PGOOD FB RT LX WDFN-8L 3x3 Typical Application Circuit VIN 2.7V to 5.5V 4 R3 100k RT8064 5 LX VIN L VOUT CIN 10µF R1 8 PGOOD PGOOD RRT 6 RT FB COMP GND Chip Enable 3 EN SS 7 1 COUT RCOMP R2 9 (Exposed Pad) CCOMP 2 CSS 10nF Table 1. Recommended Components Selection for fSW = 1MHz VOUT (V) R1 (k) R2 (k) RCOMP (k) CCOMP (pF) L (H) COUT (F) 3.3 75 24 33 560 2 22 2.5 51 24 22 560 2 22 1.8 30 24 15 560 1.5 22 1.5 21 24 13 560 1.5 22 1.2 12 24 11 560 1.5 22 1 6 24 8.2 560 1.5 22 Note: Considering the effective capacitance de-rated with biased voltage level and size, the COUT component needs satisfy the effective capacitance at least 15μF or above at targeted output level for stable and normal operation. Copyright © 2020 Richtek Technology Corporation. All rights reserved. www.richtek.com 2 is a registered trademark of Richtek Technology Corporation. DS8064-08 December 2020 RT8064 Functional Pin Description Pin No. Pin Name Pin Function SOP-8 (Exposed Pad) WDFN-8L 3x3 1 1 COMP Compensation node. Connect external compensation elements to this pin to stabilize the control loop. 2 2 SS Soft-start capacitor connection node. Connect an external capacitor between this pin and ground to set the soft-start time. 3 3 EN Enable control input. Connect this pin to logic high enables the device and connect this pin to ground disables the device. 4 4 VIN Power input. Connect input capacitors between this pin and PGND. It is recommended to use a 10F, X5R, 0805 and a 0.1F, X5R capacitors. 5 5 LX Switch node between the internal switch and the synchronous rectifier. Connect this pin to the inductor. 6 6 RT Oscillator Resistor Input. Connect a resistor from this pin to GND sets the switching frequency. 7 7 FB Feedback voltage input. Connect this pin to the midpoint of the external feedback resistive divider to set the output voltage of the converter to the desired regulation level. The device regulates the FB voltage at a feedback reference voltage, typically 0.8V. 8 8 PGOOD Power Good Indicator. This pin is an open drain logic output that is pulled to ground when the output voltage is not within 12.5% of regulation point. 9 (Exposed Pad) 9 (Exposed Pad) GND Copyright © 2020 Richtek Technology Corporation. All rights reserved. DS8064-08 December 2020 GND exposed pad. The exposed pad is internally connected with GND and must be soldered to a large GND plane. Connect this GND plane to other layers with thermal vias to help dissipate heat from the device. is a registered trademark of Richtek Technology Corporation. www.richtek.com 3 RT8064 Functional Block Diagram RT SD VIN ISEN Slope Com OSC COMP 0.8V FB OC Limit Output Clamp EA 10µA 0.7V EN Driver Hiccup SS Enable 0.4V LX Control Logic P-G NISEN OTP UV GND N-MOSFET ILIM PGOOD Copyright © 2020 Richtek Technology Corporation. All rights reserved. www.richtek.com 4 is a registered trademark of Richtek Technology Corporation. DS8064-08 December 2020 RT8064 Absolute Maximum Ratings          (Note 1) Supply Input Voltage, VIN ---------------------------------------------------------------------------------------------LX Pin Switch Voltage --------------------------------------------------------------------------------------------------

下载 PDF

RT8064ZSP

物料型号：RT8064

器件简介： RT8064是一款简单易用的电流模式控制的2A同步降压DC-DC转换器，输入电压范围为2.7V至5.5V。该设备内置了精确的0.8V参考电压，并集成了低RDS(ON)功率MOSFET，以实现在WDFN-8L 3x3和SOP-8（暴露垫）封装中的高效率。

引脚分配： - SOP-8 (Exposed Pad)和WDFN-8L 3x3两种封装类型。 - 引脚包括COMP（补偿节点）、SS（软启动电容连接节点）、EN（使能控制输入）、VIN（电源输入）、LX（开关节点）、RT（振荡器电阻输入）、FB（反馈电压输入）、PGOOD（电源良好指示）和GND（地）。

参数特性： - 输入电压范围：2.7V至5.5V。 - 集成180mΩ和120mΩ FETs。 - 100%占空比，最低降额。 - 轻载时的节能模式。 - 可调频率：200kHz至2MHz。 - 0.8V参考电压允许低输出电压。 - 使能功能、外部软启动、电源良好功能、输入欠压锁定保护、输出欠压保护和过温保护。

功能详解： - RT8064在自动PSM（功率节省模式）下运行，以在轻载操作期间保持高效率。 - 设备具有周期性电流限制保护，以防止在输出短路、过电流或电感饱和时设备遭受灾难性损坏。 - 可调软启动功能可防止启动期间的浪涌电流。 - 设备还具有输入欠压锁定、输出欠压保护和过温保护，以确保在所有操作条件下安全平稳运行。

应用信息：适用于LCD电视和监视器、笔记本电脑、分布式电源系统、IP电话和数字相机等。

封装信息： - SOP-8 (Exposed Pad-Option 2)和WDFN-8L 3x3 (W-Type)两种封装选项。 - 引脚镀层系统包括ECO（无卤素和无铅的生态元素）。

RT8064ZSP 价格&库存

-> 查询更多价格&库存

很抱歉，暂时无法提供与“RT8064ZSP”相匹配的价格&库存，您可以联系我们找货

免费人工找货