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| 型号： | TPS62420DRCT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.61 A DUAL SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, SON-10 |
| 文件页数： | 1/37页 |
| 文件大小： | 1020K |
| 代理商： | TPS62420DRCT |
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V
OUT2
SW1
FB1
SW2
ADJ2
DEF_1
OUT2
C
IN
10 F
VIN2.5V – 6V
VIN
EN_1
EN_2
MODE/
DATA
TPS62420
GND
Upto1000mA
R21
360k
R22
180k
=1.8V
L2
2.2 H
C
=22 F
C
ff2
33pF
upto600mA
R11
270k
R12
180k
V
OUT1 =1.5V
L1
2.2 H
C
OUT1 =22 F
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1000
IOUT mA
Efficiency
V
IN =3.6V
MODE/DATA =0
V
OUT1 =1.5V
V
OUT2 =1.8V
www.ti.com
SLVS676C – JUNE 2006 – REVISED JUNE 2010
2.25MHz 600mA/1000mA Dual Step Down Converter In Small 3x3mm QFN Package
1
FEATURES
DESCRIPTION
2
High Efficiency—up to 95%
VIN Range From 2.5 V to 6 V
The
TPS62420
device
is
a
synchronous
dual
step-down DC-DC converter optimized for battery
2.25 MHz Fixed Frequency Operation
powered
portable
applications.
It
provides
two
Output Current 600 mA and 1000 mA
independent output voltage rails powered by 1-cell
Adjustable Output Voltage From 0.6 V to VIN
Li-Ion or 3-cell NiMH/NiCD batteries. The device is
also suitable to operate from a standard 3.3V or 5V
Pin Selectable Output Voltage Supports
voltage rail.
Simple Dynamic Voltage Scaling
With an input voltage range of 2.5V to 6V, the
EasyScale Optional One Pin Serial Interface
TPS62420 is ideal to power portable applications like
for Dynamic Output Voltage Adjustment
smart phones, PDAs, and other portable equipment.
Power Save Mode at Light Load Currents
With the EasyScale serial interface the output
180° Out of Phase Operation
voltages
can
be
modified
during
operation.
It
Output Voltage Accuracy in PWM Mode ±1%
therefore supports Dynamic Voltage Scaling for low
Typical 32 mA Quiescent Current for both
power DSP and processors.
Converters
The TPS62420 operates at 2.25MHz fixed switching
100% Duty Cycle for Lowest Dropout
frequency and enter the Power Save Mode operation
at light load currents to maintain high efficiency over
Available in a 10-Pin QFN (3×3mm)
the
entire
load
current
range.
For
low
noise
applications the devices can be forced into fixed
APPLICATIONS
frequency PWM mode by pulling the MODE/DATA
Cell Phones, Smart-phones
pin
high.
In
the
shutdown
mode,
the
current
PDAs, Pocket PCs
consumption is reduced to 1.2mA. The device allows
OMAP and Low Power DSP Supply
the use of small inductors and capacitors to achieve a
small solution size.
Portable Media Players
Digital Radio
The TPS62420 is available in a 10-pin leadless
Digital Cameras
package (3×3mm QFN)
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.
2
EasyScale, OMAP, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2006–2010, 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.
相关PDF资料 |
PDF描述 |
|---|---|
| TPS62420DRC | 1.61 A DUAL SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS62421DRCR | 1.61 A DUAL SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS62510DRCRG4 | 1.5 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS62510DRCT | 1.5 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS62510DRC | 1.5 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS62420DRCT | 制造商:Texas Instruments 功能描述:DC/DC Converter IC 制造商:Texas Instruments 功能描述:IC, DUAL STEP-DOWN CONVERTER, SON-10 |
| TPS62420DRCTG4 | 功能描述:直流/直流开关调节器 Dual Adj 600mA & 1000mA 2.25MHz RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62420EVM-167 | 功能描述:电源管理IC开发工具 STEP DOWN CONVERTER RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS62420QDRCRQ1 | 功能描述:直流/直流开关调节器 Dual,Adj,600mA&1000 mA,2.25MHz Step-Down RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62421DRCR | 功能描述:直流/直流开关转换器 2.25MHz 600mA/1000 mA Dual Step Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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