Datasheet > RT8004A

RT8004A

更新时间： 2024-11-21 20:10:51

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
13页	308K
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RT8004A 技术参数

Status：	Active	Vin (min) (V)：	2.7
Vin (max) (V)：	5.5	Number of Outputs：	1
Vout (min) (V)：	0.8	Vout (max) (V)：	5
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	4.5	Current Limit (typ) (A)：	5.5
Freq (typ) (kHz)：	1000	Freq (min) (kHz)：	300
Freq (max) (kHz)：	4000	Ext Sync：	Yes
Ron_HS (typ) (mOhm)：	75	Ron_LS (typ) (mOhm)：	69
Iq (typ) (mA)：	0.4	Features：	100% Duty Cycle;Adjustable Frequency;Adjustable Soft-Start;Current Mode Control;Enable Input;External Synchronization;OCP;Power Good;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP
Package Type：	VQFN4x4-16;TSSOP-16(PP)

RT8004A 数据手册

RT8004A

4.5A, 4MHz, Synchronous Step-Down Regulator

General Description

Features

^zHigh Efficiency : Up to 95%

The RT8004A is a high efficiency synchronous, step-down

DC/DC converter. With an input voltage range is from 2.7V

to 5.5V, it can provide adjustable regulated output voltage

from 0.8V to 5V while delivering up to 4.5A of output

current.

^zLow Quiescent Current : 100μA

^zLow R_DS(ON)Internal Switches : 75mΩ

^zProgrammable Frequency : 300kHz to 4MHz

^zNo Schottky Diode Required

^z0.8V Reference Allows Low Output Voltage

^zLow Dropout Operation : 100% Duty Cycle

^zSynchronizable Switching Frequency

^zPower Good Output Voltage Monitor

^zOver Temperature Protection

The internal power switch with 75mΩ on-resistance

increases efficiency and eliminates the need for an external

Schottky diode. Switching frequency is either set by an

external resistor or synchronized to an external clock.

100% duty cycle provides low dropout operation, hence

extending battery life in portable systems. External

compensation allows the transient response to be

optimized over a wide range of loads and output capacitors.

^zRoHS Compliant and 100% Lead (Pb)-Free

Applications

z Portable Instruments

z Battery-Powered Equipment

z Notebook Computers

z Distributed Power Systems

z IP Phones

The RT8004A operates in Forced Continuous Mode which

reduces noise and RF interference. 100% duty cycle in

LowDropout Operation further maximizes battery life.

Ordering Information

z Digital Cameras

RT8004A

Package Type

CP : TSSOP-16 (Exposed Pad)

QV : VQFN-16L 4x4 (V-Type)

Marking Information

RT8004AGCP : Product Number

RT8004A

GCPYMDNN

YMDNN : Date Code

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

TSSOP-16 (Exposed Pad)

Note :

Richtek products are :

01= : Product Code

YMDNN : Date Code

` 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.

01=YM

DNN

VQFN-16L 4x4

DS8004A-03 March 2011

www.richtek.com

12 3 4 5 6 7...13

中文翻译

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与RT8004A相关器件

型号	品牌	获取价格	描述	数据表
RT8004PCP	RICHTEK	获取价格	3A, 4MHz, Synchronous Step-Down Regulator
RT8004PQV	RICHTEK	获取价格	3A, 4MHz, Synchronous Step-Down Regulator
RT8004PS	RICHTEK	获取价格	3A, 4MHz, Synchronous Step-Down Regulator
RT8004QCP	RICHTEK	获取价格	3A, 4MHz, Synchronous Step-Down Regulator
RT8004QQV	RICHTEK	获取价格	3A, 4MHz, Synchronous Step-Down Regulator
RT8004QS	RICHTEK	获取价格	3A, 4MHz, Synchronous Step-Down Regulator
RT8005	RICHTEK	获取价格	1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter
RT8005GQV	RICHTEK	获取价格	1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter
RT8005PQV	RICHTEK	获取价格	1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter
RT8008	RICHTEK	获取价格	1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter

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