Datasheet > RT8123A

RT8123A

更新时间： 2024-02-24 13:01:43

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
16页	185K
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技术参数
数据手册

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RT8123A 技术参数

Status：	Active	Vs (typ) (V)：	12;5
Vin (min) (V)：	1.5	Vin (max) (V)：	19
Vout (min) (V)：	0.8	Vout (max) (V)：	5
Preset Vout (V)：		Output Adj. Method：	Resistor
Accuracy (+/- %)：	0.5	Freq (typ) (kHz)：	200
Freq (min) (kHz)：	100	Freq (max) (kHz)：	1000
Iq (typ) (mA)：	3.5	Features：	Enable Input;External Synchronization;Force PWM;OCP;OVP;Power Good;SCP;UVP;Voltage Mode Control
Package Type：	WQFN3x3-16

RT8123A 数据手册

RT8123A

Single Phase PWM Controller with Light Load

Efficiency Optimization

General Description

Features

^High Performance Operational Error Amplifier

The RT8123A is a high efficiency single phase

synchronous buck DC/DC controller with 5V/12V supply

voltage. At light load condition, the IC automatically

operates in the pulse skip mode to reduce switching

frequency so as to improve conversion efficiency. As the

load current increases, the RT8123Aleaves the pulse skip

mode and operates in the continuous conduction mode

with fixed-frequency PWM.

^Internal Soft-Start/Stop



0.5% Internal Voltage Accuracy, 0.8V Voltage

Reference

^OCP accuracy, Four Re-entry Times Before Latch

^“Lossless” Differential Inductor Current Sensing

^Internal High Precision Current Sensing Amplifier

^Oscillator Frequency Range of 100kHz − 1000kHz

^20ns Adaptive FET Non-Overlap Time of Internal

Gate Driver

The RT8123A has embedded MOSFET gate driver with

high driving capability, supporting driving voltage up to 12V

for high output current application. Other features include

power good indication, external error-amp compensation,

over voltage protection, over current protection,, enable/

disable control and internal Soft-Start. With the above

functions, the IC provides customers a cost-effective

solution for high efficiency power conversion. The RT8123A

is available in a WQFN-16L 3x3 package.

^5V to 12V Operation

 Support VIN from 1.5V to 19V

 VOUT from 0.8V to 3.3V (5V with 12 VCC)

 Chip Enable Through RT/EN pin

 Latched Over Voltage Protection (OVP)

 Internally Fixed OCP Threshold

 Guaranteed Startup Into Pre-Charged Loads

 Thermally Compensated Current Monitoring

 Thermal Shutdown Protection

Ordering Information

RT8123A

 Integrated MOSFET Drivers

 Integrated BOOST Diode with Internal R_BST= 2.2Ω

 Automatic Power Saving Mode to Maximize

Efficiency During Light Load Operation

 Sync Function

Package Type

QW : WQFN-16L 3x3 (W-Type)

Lead Plating System

G : Green (Halogen Free and Pb Free))

 Remote Ground Sensing

Note :

Richtek products are :

Applications

 RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

 Suitable for use in SnPb or Pb-free soldering processes.

 Memory and Termination Supply

 Subsystem Power Supply (MCH, IOCH, PCI)

 CPU and DSP Power Supply

 Distributed Power Supply

Marking Information

 GeneralDC/DC Converter

87= : Product Code

YMDNN : Date Code

87=YM

DNN

is a registered trademark of Richtek Technology Corporation.

DS8123A-00 September 2015

www.richtek.com

12 3 4 5 6 7...16

中文翻译

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与RT8123A相关器件

型号	品牌	获取价格	描述	数据表
RT8124A	RICHTEK	获取价格	暂无描述
RT8125C	RICHTEK	获取价格	暂无描述
RT8125D	RICHTEK	获取价格	暂无描述
RT8125E	RICHTEK	获取价格	暂无描述
RT8125F	RICHTEK	获取价格	暂无描述
RT8125G	RICHTEK	获取价格	暂无描述
RT8125H	RICHTEK	获取价格	High Efficiency Single Synchronous Buck PWM Controller
RT8125P	RICHTEK	获取价格	High Efficiency Single Synchronous Buck PWM Controller
RT8126A	RICHTEK	获取价格	暂无描述
RT8126B	RICHTEK	获取价格	暂无描述

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