5秒后页面跳转
TPS62420-Q1 PDF预览

TPS62420-Q1

更新时间: 2024-11-15 12:21:51
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
36页 1300K
描述
2.25-MHz 600-mA/1000-mA DUAL STEP-DOWN CONVERTER

TPS62420-Q1 数据手册

 浏览型号TPS62420-Q1的Datasheet PDF文件第2页浏览型号TPS62420-Q1的Datasheet PDF文件第3页浏览型号TPS62420-Q1的Datasheet PDF文件第4页浏览型号TPS62420-Q1的Datasheet PDF文件第5页浏览型号TPS62420-Q1的Datasheet PDF文件第6页浏览型号TPS62420-Q1的Datasheet PDF文件第7页 
TPS62420-Q1  
www.ti.com  
SLVSA56 DECEMBER 2009  
2.25-MHz 600-mA/1000-mA DUAL STEP-DOWN CONVERTER  
Check for Samples: TPS62420-Q1  
1
FEATURES  
Qualified for Automotive Applications  
Power Save Mode at Light Load Currents  
High Efficiency: Up to 95%  
180° Out of Phase Operation  
VIN Range From 2.5 V to 6 V  
Output Voltage Accuracy in PWM Mode: ±1%  
2.25-MHz Fixed Frequency Operation  
Output Current: 600 mA and 1000 mA  
Adjustable Output Voltage From 0.6 V to VIN  
Typical 32-μA Quiescent Current for Both  
Converters  
100% Duty Cycle for Lowest Dropout  
Available in a 10-Pin QFN (3×3mm)  
EasyScale™ Optional One-Pin Serial Interface  
for Dynamic Output Voltage Adjustment  
DESCRIPTION  
The TPS62420 device is a synchronous dual step-down dc-dc converter optimized for battery-powered portable  
applications. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD  
batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail.  
With the EasyScale™ serial interface the output voltages can be modified during operation. It therefore supports  
Dynamic Voltage Scaling for low power DSP and processors.  
The TPS62420 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light  
load currents to maintain high efficiency over the entire load current range. For low-noise applications, the  
devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin high. In the shutdown  
mode, the current consumption is reduced to 1.2 μA. The device allows the use of small inductors and capacitors  
to achieve a small solution size.  
The TPS62420 is available in a 10-pin leadless package (3mm×3mm QFN).  
TPS62420  
VIN 2.5V 6V  
100  
90  
VIN  
FB 1  
SW1  
L1  
VOUT1 = 1.5V  
up to 600mA  
CIN  
80  
70  
60  
50  
40  
30  
20  
10  
0
2.2 μH  
R11  
270kΩ  
10 μF  
V
= 1.8V  
OUT2  
COUT1 = 22 µF  
V
= 3.6V  
DEF_1  
IN  
MODE/DATA = 0  
R12  
180kΩ  
EN_1  
V
= 1.5V  
OUT1  
L2  
V
OUT2 = 1.8V  
EN_2  
SW2  
2.2 μH  
Up to 1000mA  
COUT2 = 22 µF  
Cff2  
33pF  
R21  
360kΩ  
MODE/  
DATA  
ADJ2  
GND  
R22  
180kΩ  
0.01  
0.1  
1
10  
100  
1000  
I
mA  
OUT  
ORDERING INFORMATION(1)  
TJ  
–40°C to 125°C  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
OEP  
QFN – DRC  
Reel of 3000  
TPS62420QDRCRQ1  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2009, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

TPS62420-Q1 替代型号

型号 品牌 替代类型 描述 数据表
TPS62410-Q1 TI

功能相似

2.25MHz 2x800mA Dual Step Down Converter In Small 3x3mm QFN Package
TPS62404-Q1 TI

功能相似

2.25-MHz 400-mA/600-mA DUAL STEP-DOWN CONVERTER
TPS62400-Q1 TI

功能相似

2.25-MHz 400-mA/600-mA DUAL STEP-DOWN CONVERTER

与TPS62420-Q1相关器件

型号 品牌 获取价格 描述 数据表
TPS62420QDRCRQ1 TI

获取价格

2.25-MHz 600-mA/1000-mA DUAL STEP-DOWN CONVERTER
TPS62421 TI

获取价格

采用 3x3mm QFN 小型封装的 2.25MHz 600mA/1000mA 双路降压转
TPS62421DRCR TI

获取价格

2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
TPS62421DRCT TI

获取价格

2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
TPS62422-Q1 TI

获取价格

用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 1000mA/600
TPS62422QDRCRQ1 TI

获取价格

用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 1000mA/600
TPS62423-Q1 TI

获取价格

用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 800mA 降压转换
TPS62423QDRCRQ1 TI

获取价格

用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 800mA 降压转换
TPS62424-Q1 TI

获取价格

用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 800mA 降压转换
TPS62424QDRCRQ1 TI

获取价格

用于 ADAS 摄像头应用的汽车类 2.25MHz 固定输出电压双路 800mA 降压转换