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TPS62741 Datasheet(PDF) 1 Page - Texas Instruments

Part # TPS62741
Description  360nA IQ Step Down Converter For Low Power Applications
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62741 Datasheet(HTML) 1 Page - Texas Instruments

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TPS62740
60
65
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75
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100
Output Current (mA)
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 current
m
GND
L 2.2 H
m
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
Subsystem
(Sensors)
2.1V
Main rail
Switched
supply rail
R
pull up
V
CC
V
CC
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS62740, TPS62742
SLVSB02B – NOVEMBER 2013 – REVISED JULY 2014
TPS6274x 360nA IQ Step Down Converter For Low Power Applications
1 Features
3 Description
The TPS6274x is industry's first step down converter
1
Input Voltage Range VIN 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 COUT
connected to the input voltage. The integrated slew
Total Solution Size <31mm2
rate controlled load switch provides typ. 0.6
Ω on-
Small 2 x 3 mm2 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 × 3mm2
WSON package and supports a total solutions size of
Bluetooth® Low Energy, RF4CE, Zigbee
31mm2.
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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