TPS61099 Datasheet, PDF (1/22 Pages) Texas Instruments – TPS61099x Synchronous Boost Converter with Ultra-Low Quiescent Current

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TPS61099
SLVSD88A – JULY 2016 – REVISED SEPTEMBER 2016
TPS61099x Synchronous Boost Converter with Ultra-Low Quiescent Current
1 Features
•1 600 nA Ultra-Low I_Q into V_OUT Pin
• 400 nA Ultra-Low I_Q into V_IN Pin
• Operating Input Voltage from 0.7 V to 5.5 V
• Adjustable Output Voltage from 1.8 V to 5.5 V
• Fixed Output Voltage Versions Available
• Minimum 0.8 A Switch Peak Current Limit
• Regulated Output Voltage in Down Mode
• True Disconnection During Shutdown
• Up to 75% Efficiency at 10 µA Load with Fixed
Output Voltage Versions
• Up to 93% Efficiency from 10 mA to 300 mA Load
• 6-Ball 1.23 mm x 0.88 mm WCSP Package
2 Applications
• Memory LCD Bias
• Optical Heart Rate Monitor LED Bias
• Wearable Applications
• Low Power Wireless Applications
• Portable Products
• Battery Powered Systems
3 Description
The TPS61099x is an synchronous boost converter
with 1-µA ultra-low quiescent current. It is designed
for products powered by alkaline battery, NiMH
rechargeable battery, Li-Mn battery or rechargeable
Li-Ion battery, for which high efficiency under light
load condition is critical to achieve long battery life
operation.
The TPS61099x boost converter uses a hysteretic
control topology to obtain maximal efficiency at
minimal quiescent current. It only consumes 1-µA
quiescent current under light load condition and can
achieve up to 75% efficiency at 10-µA load with fixed
output voltage version. It can also support up to 300-
mA output current from 3.3 V to 5 V conversion, and
achieve up to 93% at 200-mA load.
The TPS61099x also offers both Down Mode and
Pass-Through operations for different applications. In
Down Mode, the output voltage can still be regulated
at target value even when input voltage is higher than
output voltage. In Pass-Through Mode, the output
voltage follows input voltage. The TPS61099x exits
Down Mode and enters into Pass-Through Mode
when V_IN > V_OUT + 0.3 V.
The TPS61099x supports true shutdown function
when it is disabled, which disconnects the load from
the input supply to reduce the current consumption.
The TPS61099x offers both adjustable output voltage
version and fixed output voltage versions. It is
available in 6-ball 1.23-mm x 0.88-mm WCSP
Package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61099
WCSP (6)
1.23 mm x 0.88 mm
TPS61099x
WCSP (6)
1.23 mm x 0.88 mm
(1) For all available packages, see the orderable addendum at
the end of this document.
Typical Application Circuit
V_IN
0.7 V to 5.5 V
C1
10 µF
L1
2.2 µH
SW
VOUT
VIN TPS61099 _FB
EN
GND
1.8 V to 5.5 V
V_OUT
R1 ^{C2 C3}
10 µF 10 µF
R2
Copyright © 2016, Texas Instruments Incorporated
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.