TPS7A20
SBVS338E – MARCH 2020 – REVISED DECEMBER 2021
TPS7A20 300-mA, Ultra-Low-Noise, Low-IQ, High PSRR LDO
1 Features
3 Description
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Low output voltage noise: 7 µVRMS
– No noise-bypass capacitor required
High PSRR: 95 dB at 1 kHz
Very low IQ: 6.5 µA
Input voltage range: 1.6 V to 6.0 V
Output voltage range: 0.8 V to 5.5 V
Output voltage tolerance: ±1.5% (max)
Very low dropout:
– 140 mV (max) at 300 mA (VOUT = 3.3 V)
– 145 mV (max) at 300 mA (VOUT = 3.3 V, DBV)
Low inrush current
Smart enable pulldown
Stable with 1-µF minimum ceramic output
capacitor
The TPS7A20 is an ultra-small, low-dropout (LDO)
linear regulator that can source 300 mA of output
current. The TPS7A20 is designed to provide low
noise, high PSRR, and excellent load and line
transient performance that can meet the requirements
of RF and other sensitive analog circuits. Using
innovative design techniques, the TPS7A20 offers an
ultra-low noise performance without the addition of a
noise bypass capacitor. The TPS7A20 also provides
the advantage of low quiescent current, which can be
ideal for battery-powered applications. With an input
voltage range of 1.6 V to 6.0 V and an output range of
0.8 V to 5.5 V, the TPS7A20 can be used for a wide
variety of applications. The device uses a precision
reference circuit to provide a maximum accuracy of
1.5% over load, line, and temperature variations.
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Packages:
– 1-mm × 1-mm X2SON
– 0.603-mm × 0.603-mm DSBGA
– 2.90-mm × 1.60-mm SOT23-5
The TPS7A20 features an internal soft-start to lower
the inrush current, thus minimizing the input voltage
drop during start up. The device is stable with
small ceramic capacitors, allowing for a small overall
solution size.
2 Applications
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Smartphones and tablets
IP network cameras
Portable medical equipment
Smart meters and field transmitters
Motor drives
The TPS7A20 has a smart enable input circuit with an
internally controlled pulldown resistor that keeps the
LDO disabled even when the EN pin is left floating
and helps eliminate the external components used to
pulldown the EN pin.
Wearables
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
1.00 mm × 1.00 mm
0.603 mm × 0.603 mm
2.90 mm × 1.60 mm
X2SON (4)
TPS7A20
DSBGA (4)
SOT-23 (5)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
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.