Datasheet > RAA808013

RAA808013

更新时间： 2023-12-20 18:46:34

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
20页	2082K
描述
5.5V 3A Compact Single-Channel DC/DC Synchronous Buck Regulator

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RAA808013 数据手册

Datasheet

RAA808013

2.7V to 5.5V Input, 3A Synchronous Buck Regulator

The RAA808013 is a 3A synchronous buck regulator

with an input range of 2.7V to 5.5V. It provides an

easy-to-use, high-efficiency low BOM count solution

for a variety of applications.

Features

▪ 2.7V to 5.5V operating input range

▪ 3A output current

▪ Output adjustable from 0.6V

▪ 100% duty cycle in dropout

The RAA808013 integrates both high-side and

low-side MOSFETs and features a PFM mode for

improved efficiency at light loads.

▪ 77mΩ and 42mΩ internal power MOSFET switches

▪ High switching frequency (1.5MHz)

▪ EN for power sequencing

The RAA808013 adopts Constant On-Time (COT)

control architecture to provide an ultrafast transient

response with few external components and to

operate in nearly constant switching frequency over

the line, load, and output voltage range. The part

switches at a default frequency of 1.5MHz.

▪ Internal soft-start

▪ Cycle-by-cycle overcurrent protection (7 times)

▪ OCP and SCP with hiccup mode

▪ Input undervoltage lockout (UVLO)

▪ Over-temperature protection

The RAA808013 can switch between constant

on-time control and constant off-time control smoothly

and can also switch between constant off-time control

▪ Small TSOT23-6 package

and 100% Duty Cycle smoothly with V voltage

Applications

changing.

▪ Low-voltage, high-density power system

With the wide VIN range and reduced BOM, the part

provides an easy-to-implement design solution for a

variety of applications while giving superior

performance. It provides a robust design for high

voltage industrial applications and an efficient solution

for battery-powered applications.

▪ Point-of-load regulation for high-performance

DSPs, FPGAs, ASICs, and microprocessors

▪ Broadband, networking, and optical

▪ Communications infrastructure

▪ Portable instruments and battery-powered devices

▪ Solid-state drives (SSD)

The part is available in a small TSOT23-6 plastic

package with an operation junction temperature

range of -40°C to +125°C.

▪ Industrial and medical equipment

▪ Gaming, DTV, and set-top boxes

100

1µH

2.7V to 5.5V Input

10µF

1.2V Output

22µF

VIN

51k

0.6V

1.2V

3.3V

GND

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Load Current (A)

Figure 1. Typical Application

Figure 2. Efficiency vs Load, L = 1.0µH, V_IN= 5V

R16DS0199EU0100 Rev.1.00

Aug 19, 2022

Page 1

12 3 4 5 6 7...20

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