TPS7A11
SBVS316B – SEPTEMBER 2018 – REVISED DECETMPBESR7A201210
SBVS316B – SEPTEMBER 2018 – REVISED DECEMBER 2020
www.ti.com
TPS7A11 500-mA, Low VIN, Low VOUT, Ultra-Low Dropout Regulator
1 Features
3 Description
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Ultra-low input voltage range: 0.75 V to 3.3 V
Ultra-low dropout for minimum power loss:
– 140 mV (maximum) at 500-mA DRV package
– 110 mV (maximum) at 500-mA YKA package
Low quiescent current:
The TPS7A11 is an ultra-small, low quiescent current,
low-dropout regulator (LDO). This device can source
500 mA with an outstanding ac performance (load and
line transient responses). This device has an input
range of 0.75 V to 3.3 V, and an output range of 0.5 V
to 3.0 V with a very high accuracy of 1.5% over load,
line, and temperature. This performance is ideal for
supplying power to the lower core voltages of modern
microcontrollers (MCUs) and analog sensors.
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– VIN IQ = 1.6 µA (typical)
– VBIAS IQ = 6 µA (typical)
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1.5% accuracy over load, line, and temperature
High PSRR: 64 dB at 1 kHz
Available in fixed-output voltages:
– 0.5 V to 3.0 V (in 50-mV steps)
VBIAS range: 1.7 V to 5.5 V
The primary power path is through the IN pin and can
be connected to a power supply as low as 140 mV
above the output voltage. This device supports very
low input voltages with the use of an additional VBIAS
rail that is used to power the internal circuitry of the
LDO. The IN and BIAS pins consume very low
quiescent current of 1.6 µA and 6 µA, respectively.
The low IQ and ultra-low dropout features help to
increase the efficiency of the solution in power-
sensitive applications. For example, the supply
voltage to the IN pin can be an output of a high-
efficiency, DC/DC step-down regulator and the BIAS
pin supply voltage can be a rechargeable battery.
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Packages:
– 2.0-mm × 2.0-mm WSON (6)
– 0.74-mm × 1.09-mm DSBGA (5)
Active output discharge
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2 Applications
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Smart watches, fitness trackers
Wireless headphones and earbuds
Camera modules
Smart phones and tablets
Portable medical devices
Solid state drives (SSDs)
The TPS7A11 is equipped with an active pulldown
circuit to quickly discharge the output when disabled,
and provides a known start-up state.
The TPS7A11 is available in a small 2.00-mm × 2.00-
mm WSON, 6-pin (DRV) package and an ultra-small
0.74-mm × 1.09-mm, 5-pin DSBGA (YKA) package
that makes the device suitable for space-constrained
applications.
VBATTERY
CBIAS
Device Information (1)
BIAS
VOUT
IN
OUT
Standalone
IN
OUT
PART NUMBER
PACKAGE
BODY SIZE (NOM)
CIN
COUT
DC/DC Converter
Or PMU
TPS7A11
WSON (6)
2.00 mm × 2.00 mm
EN
GND
TPS7A11
GND
0.74 mm × 1.09 mm
(0.35-mm pitch)
DSBGA (5)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
140
TJ
-40 èC
0 èC
25 èC
85 èC
105 èC
125 èC
120
100
80
60
40
20
0
0
50 100 150 200 250 300 350 400 450 500
Output Current (mA)
Dropout vs IOUT and Temperature, YKA Package
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.
Product Folder Links: TPS7A11
Copyright © 2020 Texas Instruments Incorporated
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