Datasheet > RTQ2159-QA

RTQ2159-QA

更新时间： 2024-04-09 18:59:12

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
29页	1493K
描述
8A, 6.5V, 2.1MHz, ACOT? Synchronous Step-Down Converter with I2C Interface

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RTQ2159-QA 数据手册

RTQ2159-QA

8A, 6.5V, 2.1MHz, ACOT^®Synchronous Step-Down

Converter with I²C Interface

Features

 AEC-Q100 Grade 1 Qualified

General Description

The RTQ2159 is a high-performance, synchronous

 Dramatically Fast Transient Response

step-down DC-DC converter that can deliver up to 8A

 Selectable Switching Frequency (0.46MHz /

output current from a 2.85V to 6.5V input supply. The

0.69MHz / 0.92MHz / 2.1MHz)

output voltage can be programmed from 0.6V to 1.5V

with I²C controlled 7-Bits VID.

 Extremely High Efficiency 15mΩ/10mΩ MOSFETs

 Advanced COT Control Loop

The device integrates low R_DS(ON)power MOSFETs,

accurate reference voltage and an integrated diode of

bootstrap circuit to offer a very compact solution.

 Wide Input Voltage Range from 2.85V to 6.5V

 Optimized for Ceramic Output Capacitors

 Internal Start-Up into Pre-biased Outputs

 Power Good Indicator

The RTQ2159 adopts Advanced Constant On-Time

(ACOT^®) control architecture that provides ultrafast

transient response and further reduces the

external-component count. In steady states, the

ACOT^®operates in nearly constant switching

frequency over line, load and output voltage ranges

and makes the EMI filter design easier. The RTQ2159

operations in Forced-CCM that helps meet tight voltage

regulation accuracy requirements.

 Enable Control

 Over-Current and Over-Temperature Protections

 Under-Voltage Protection with Hiccup Mode

 VID Control Range Via I²C Compatible Interface :

0.6V to 1.5V step = 10mV

Applications

 Automotive Systems

 Infotainment and Cockpit Systems

 Vehicle ADAS ECU

The device offers independent enable control input pin

and power good indicator for easily sequence control.

To control the inrush current during the startup, the

device provides a programmable soft-start up by an

external capacitor connected to the SS pin. Fully

protection features are also integrated in the device

including the cycle-by-cycle current limit control, UVP,

input UVLO and OTP. The RTQ2159 is available in a

thermally enhanced WET-WQFN-21L 4x4 (FC)

package.

 Connected Car Systems

 High Density DDR Memory

 Broadband

Communications

and

Industrial

Systems

Simplified Application Circuit

RTQ2159

V_IN

BOOT

VIN

V_AVCC

AVCC

V_OUT

V_PGOOD

Enable Signal

V_IN

PGOOD

SDA

SCL

AGND

PGND

is a registered trademark of Richtek Technology Corporation

DSQ2159-QA-01 March 2021

www.richtek.com

12 3 4 5 6 7...29

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RTQ2510-QT	RICHTEK	获取价格	1A, Low Noise, Ultra High PSRR, Low-Dropout Linear Regulator
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RTQ2513T	RICHTEK	获取价格	暂无描述
RTQ2516-QT	RICHTEK	获取价格	2A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable
RTQ2520	RICHTEK	获取价格	2A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear Regulator
RTQ2521	RICHTEK	获取价格	1.2A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear Regulator

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