Datasheet > RAA211835

RAA211835

更新时间： 2024-11-30 14:58:15

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
23页	3893K
描述
Integrated FET 75V, 3A Asynchronous Buck Regulator with Internal Compensation and Programmable Frequency

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

RAA211835 数据手册

Datasheet

RAA211835

4.5V to 75V, 3A, DC/DC Nonsynchronous Step-Down Regulator with Internal Compensation and Adjustable

Frequency

The RAA211835 is a DC/DC nonsynchronous

step-down (Buck) regulator that supports a 4.5V to

75V input voltage range and adjustable output

voltage. It can deliver up to continuous 3A of

Features

▪ Wide input voltage range: 4.5V to 75V

▪ Adjustable output voltage: 0.8V to 90% of VIN

▪ Up to 3A of continuous output current

continuous output current with premium load and line

regulation performance.

▪ Default 400kHz switching frequency and

programmable switching frequency range from

200kHz to 800kHz

The RAA211835 uses peak-current mode control

architecture. With a programmable PWM switching

frequency, it provides the best trade off between

transient response and efficiency. The device

supports PFM operation to maximize light load

efficiency as well as an external bias LDO input to

further reduce power dissipation across the load

range. The regulator has an internal loop

▪ ±1% Load regulation accuracy from -40°C to

125°C, ±0.5% Load regulation accuracy at 25°C

▪ 90µA typical quiescent current

▪ Internal compensation

▪ Internal 0.5ms soft-start in QFN

▪ External programmable soft-start (HTSSOP)

▪ PFM operation at light load

▪ Integrated external bias LDO

▪ Power good indicator

compensation circuit to reduce the external

component count and BOM cost.

The RAA211835 provides useful functions such as

internal or programmable soft-start and a power-good

indicator. For safe operation, the RAA211835 has

protection features such as cycle-by-cycle peak

current limit, input voltage UVLO, output voltage

undervoltage (short-circuit) protection, and thermal

shutdown.

▪ Integrated MOSFET r

(typical): 155mΩ

DS(ON)

(QFN); 200mΩ (HTSSOP)

▪ Cycle-by-cycle peak current limit

▪ Input voltage UVLO and output voltage

undervoltage (short-circuit) protection

▪ Thermal shutdown

Applications

▪ Available in 20 Ld QFN 4mm × 3.5mm and

16 Ld HTSSOP packages

▪ Industrial power systems

▪ Distributed power supplies and general-purpose

point-of-load

▪ Telecommunication base station power supplies

▪ High-voltage single-board systems

V_IN

Up to 75V

C_IN2

VIN

BST

C_BOOT

V_OUT5V

C_IN1

R_IN1

R_IN2

C_OUT1

22µF

C_OUT2

22µF

RAA211835

R_FB1

PGND

VCC

R_FB2

EBIAS

AGND

VCC

C_VCC

Figure 1. Typical Application Circuit

R16DS0242EU0101 Rev.1.01

Mar 13, 2023

Page 1

12 3 4 5 6 7...23

中文翻译

下载PDF

与RAA211835相关器件

型号	品牌	获取价格	描述	数据表
RAA212831	RENESAS	获取价格	72V 0.5A Step-Down Regulator with Two 5V and 3.3V LDO Outputs
RAA212832	RENESAS	获取价格	72V 0.5A Step-Down Regulator with Fixed 6V or 12V Output, with Two 5V and 3.3V LDO Outputs
RAA214020	RENESAS	获取价格	5.5V 2A Ultra Low Noise, High PSRR, LDO
RAA214023	RENESAS	获取价格	5.5V 2A Ultra Low Noise, High PSRR, LDO, pin to pin with TPS7A83 family
RAA214220	RENESAS	获取价格	20V, 150mA Linear Regulator
RAA214223	RENESAS	获取价格	150mA 20V Wide Input Voltage Range LDO Linear Regulator with 3.3V Fixed Output
RAA214250	RENESAS	获取价格	20V, 500mA Linear Regulator
RAA214401	RENESAS	获取价格	150mA Wide Input Range Ultra Low Quiescent Current Linear Regulator
RAA214403	RENESAS	获取价格	Low Iq Current LDO Regulator with Fixed 3.3V Output
RAA214404	RENESAS	获取价格	Low Iq Current LDO Regulator with Fixed 3.6V Output

与RAA211835相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

49
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

38
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

67
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

63

产品中心

服务支持

精选活动

关于我们

帮助中心

RAA211835

RAA211835 数据手册

与RAA211835相关器件

与RAA211835相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

RAA211835

RAA211835 数据手册

与RAA211835相关器件

与RAA211835相关文章

您还可以找

您在本页遇到什么问题？