Datasheet > RT5800

RT5800

更新时间： 2024-11-25 19:30:47

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
47页	2664K
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技术参数
数据手册

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RT5800 技术参数

Status：	Active	Vin (min) (V)：	3
Vin (max) (V)：	6	Number of Outputs：	3
Vout (min) (V)：	0.3	Vout (max) (V)：	1.85
Preset Vout (V)：		Output Adj. Method：	Digital
Iout (max) (A)：	5.5	Current Limit (typ) (A)：	7
Freq (typ) (kHz)：	2100	Freq (min) (kHz)：	1850
Freq (max) (kHz)：	2500	Ext Sync：	No
Ron_HS (typ) (mOhm)：	25	Ron_LS (typ) (mOhm)：	15
Iq (typ) (mA)：	0.07	Features：	ACOT Control;Built-in Bootstrap Switch;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;OTP;OVP;SCP;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP
Package Type：	WQFN4.5x5-30(FC)

RT5800 数据手册

RT5800

2.1MHz, 3 CHs, Step-Down Converter with I²C Interface

Features

 FMEA Compliant PinOut

General Description

The RT5800 is a multi-phase, programmable power

management IC, integrated with four high efficient,

synchronous step-down converter cores. The RT5800

can be 2 + 2 and 2 + 1 + 1 output by OTP. It also

features wide output voltage range and the capability to

configure the corresponding power stages, which make

the device optimized to meet power management

requirements for low-power processors, such as core

power for CPUs and GPUs. The RT5800 supports

many programmable functions including voltage level,

slew rate of voltage change, and slew rate of soft-start

via an I²C interface capable of operating up to 3.4MHz.

The RT5800 also supports remote-sense function to

get accurate output voltage at large loading. Moreover,

the device has interrupt and fault-detection function to

report error status. The RT5800 is available in a

WQFN-30L 4.5x5 (FC) package.

 2 + 2 / 2 + 1 + 1 Phase Output

 Input Supply Voltage Range : 3V to 6V

 I²C Programmable Output Voltage : 0.3V to 1.85V

 Maximum Output Current : 5.5A per Phase

 Output Remote Sense for High Accuracy

 Fast Transient Response

 Selectable Automatic Phase Shielding and

Power Saving Mode Enables Higher Light Load

Efficiency

 Dynamic

Voltage

Scaling

(DVS)

with

Programmable Slew Rate for Each Output

 Programmable Soft-Start Function

 Interrupt Function and Fault Detection

 Watchdog Function

 Input Under-Voltage Lockout (UVLO)

 Cycle-by-Cycle Current Limit

 Output Under-Voltage Protection

 Over-Temperature Protection

 WQFN-30L 4.5x5 (FC)

Applications

 Automotive Systems

Simplified Application Circuit

AVIN

VOUT1

PVIN1

PVIN2

PVIN3

PVIN4

LX1

LX4

OUT1

OUT2

OUT3

RTN1

VOUT2

LX2

OUT2

SCL

RT5800

I C Signal

SDA

VSELA

RTN2

Signal Input

VOUT3

LX3

WDOG_RST

INT

OUT3

Signal Output

RTN3

VIO

PGND

AGND

AVIN_FILT

is a registered trademark of Richtek Technology Corporation.

DS5800-00 November 2019

www.richtek.com

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