Datasheet > RTQ2131B-QA

RTQ2131B-QA

更新时间： 2024-01-13 12:05:23

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
28页	421K
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RTQ2131B-QA 技术参数

Status：	Active	Vin (min) (V)：	3
Vin (max) (V)：	36	Number of Outputs：	1
Vout (min) (V)：	0.8	Vout (max) (V)：	28
Preset Vout (V)：		Output Adj. Method：	Fixed;Resistor
Iout (max) (A)：	1	Current Limit (typ) (A)：	1.6
Freq (typ) (kHz)：	2100	Freq (min) (kHz)：
Freq (max) (kHz)：		Ext Sync：	No
Ron_HS (typ) (mOhm)：	200	Ron_LS (typ) (mOhm)：	160
Iq (typ) (mA)：	1.1	Features：	AEC-Q100 Qualified;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;Force PWM;OCP;Power Good;UVP
Package Type：	WDFN3x3-10S	Datasheet：	https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DSQ2131B-QA-01.pdf

RTQ2131B-QA 数据手册

RTQ2131B-QA

1A, 36V, 2.1MHz Synchronous Step-Down Converter

General Description

Features

^AEC-Q100 Grade 1 Qualified

The RTQ2131B is a 1A, high-efficiency, current mode

synchronous step-down converter which is optimized for

automotive applications. The device operates with input

voltages from 3V to 36V and is protected from load dump

transients up to 42V, eases input surge protection design.

The device can program the output voltage between 0.8V

to V_IN. The peak current mode control with simple external

compensation allows the use of small inductors and

results in fast transient response and good loop stability.

^Wide Input Voltage Range

^4V to 36V

^3V to 36V (Soft-start is finished)

^Tight Switching Frequency Variation 2.1MHz 10%

Over Operating Ambient Temperature

^Wide Output Voltage Range : 0.8V to V_IN

^5V Fixed Output Voltage ( see Ordering Information

for availability)

^Maximum Output Current : 1A

^Peak Current Mode Control

^Integrated 200mΩ Switch and 160mΩ Synchronous

Rectifier

The RTQ2131B provides complete protection functions

such as input under voltage lockout, output under voltage

protection, over current protection, and thermal shutdown.

Cycle-by-cycle current limit provides protection against

shorted outputs and soft-start eliminates input current

surge during start-up. The RTQ2131B is available in

WDFN-10SL 3x3 (Exposed Pad) package.

 Built-In Spread-Spectrum Frequency Modulation for

Low EMI

 Power Good Indication

 Enable Control

 0.8V 1.5% Reference Voltage Accuracy

 Adjacent Pin-Short Protection

 Built-In UVLO, UVP, OTP

Applications

 Automotive Systems

 Car Camera Module and Car Cockpit Systems

 Connected Car Systems

 Point of Load Regulator in Distributed Power Systems

 Digital Set Top Boxes

Ordering Information

)

RTQ2131B

-QA

 Broadband Communications

Grade

QA : AEC-Q100 Qualified and

Screened by High Temperature

Pin Configuration

Package Type

QW : WDFN-10SL 3x3 (W-Type)

(TOP VIEW)

Lead Plating System

G : Green (Halogen Free and Pb Free)

VIN

PGOOD

BOOT

PGND

VCC

FB/VS

COMP

AGND

Fixed Output Voltage

50 : 5V

Note :

Richtek products are :

WDFN-10SL 3x3

 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.

is a registered trademark of Richtek Technology Corporation.

DSQ2131B-QA-01 August 2018

www.richtek.com

12 3 4 5 6 7...28

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