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TPS62740EVM-186 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
开发套件
描述:
TEXAS INSTRUMENTS TPS62740EVM-186. 评估板, TPS62740, 降压转换器
Pictures:
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页面导航:
引脚图在P3Hot
典型应用电路图在P1P12
原理图在P8
封装尺寸在P25P27P28
标记信息在P3P25
封装信息在P24P25P26P27P28
技术参数、封装参数在P4
应用领域在P1P32
电气规格在P5P6P12
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TPS62740EVM-186数据手册
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New
TPS62740
60
65
70
75
80
85
90
95
100
Output Current (mA)
Efficiency (%)
V = 3.6V
V = 3.3V
IN
OUT
Current
DCS-Control topology
TM
0.001 0.01 0.1 1 10 100 1000
TPS62740 extends
light load efficiency range
down to 10 A output currentm
GND
L 2.2 Hm
VOUT
VSEL3
SW
PG
VIN
CTRL
V
2.2V - 5.5V
IN
C
10
IN
mF
C
10 F
OUT
m
TPS62740
VSEL4
VSEL1
LOAD
VSEL2
EN
Low Power
MCU + RF
Subsystem
(Sensors)
2.1V
Main rail
Switched
supply rail
R
pull up
V
CC
V
CC
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TPS62740, TPS62742
SLVSB02B –NOVEMBER 2013–REVISED JULY 2014
TPS6274x 360nA I
Q
Step Down Converter For Low Power Applications
1 Features 3 Description
The TPS6274x is industry's first step down converter
1
• Input Voltage Range V
IN
from 2.2V to 5.5
featuring typ. 360nA quiescent current and operating
• Typ. 360nA Quiescent Current
with a tiny 2.2µH inductor and 10µF output capacitor.
• Up to 90% Efficiency at 10µA Output Current
This new DCS-Control™ based device extends the
light load efficiency range below 10µA load currents.
• Up to 300mA / 400mA Output Current
TPS62740 supports output currents up to 300mA,
(TPS62740/TPS62742)
TPS62742 up to 400mA. The device operates from
• RF Friendly DCS-Control
TM
rechargeable Li-Ion batteries, Li-primary battery
• Up to 2 MHz Switching Frequency
chemistries such as Li-SOCl2, Li-MnO2 and two or
three cell alkaline batteries. The input voltage range
• Low Output Ripple Voltage
up to 5.5V allows also operation from a USB port and
• 16 Selectable Output Voltages in 100mV Steps
thin-film solar modules. The output voltage is user
between 1.8V to 3.3V
selectable by four VSEL pins within a range from
• Automatic Transition to No Ripple 100% Mode
1.8V to 3.3V in 100mV steps. TPS6274x features low
output ripple voltage and low noise with a small
• Slew Rate Controlled Load Switch
output capacitor. Once the battery voltage comes
• Discharge Function on VOUT / LOAD
close to the output voltage (close to 100% duty cycle)
• Power Good Output
the device enters no ripple 100% mode operation to
• Optimized for Operation with a Tiny 2.2µH
prevent an increase of output ripple voltage. The
device then stops switching and the output is
Inductor and 10µF C
OUT
connected to the input voltage. The integrated slew
• Total Solution Size <31mm
2
rate controlled load switch provides typ. 0.6Ω on-
• Small 2 x 3 mm
2
WSON Package
resistance and can distribute the selected output
voltage to a temporarily used sub-system. The
2 Applications
TPS6274x is available in a small 12 pin 2 × 3mm
2
WSON package and supports a total solutions size of
• Bluetooth
®
Low Energy, RF4CE, Zigbee
31mm
2
.
• Industrial Metering
• Energy Harvesting
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
TPS62740
WSON 3.00 mm × 2.00 mm
TPS62742
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Typical Application
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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