TPS7A8101-Q1_16 Datasheet, PDF (1/29 Pages) Texas Instruments – TPS7A8101-Q1 Low-Noise, Wide-Bandwidth, High PSRR, Low-Dropout 1-A Linear Regulator

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TPS7A8101-Q1
SLVSCK0A – APRIL 2014 – REVISED JUNE 2014
TPS7A8101-Q1 Low-Noise, Wide-Bandwidth, High PSRR,
Low-Dropout 1-A Linear Regulator
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C4B
• Low-Dropout 1-A Regulator with Enable
• Adjustable Output Voltage: 0.8 V to 6 V
• Wide-Bandwidth High PSRR:
– 80 dB at 1 kHz
– 60 dB at 100 kHz
– 54 dB at 1 MHz
• Low Noise: 23.5 μV_RMS typical (100 Hz to
100 kHz)
• Stable With 4.7-μF Output Capacitance
• Excellent Load and Line Transient Response
• 3% Overall Accuracy (Over Load, Line,
Temperature)
• Over-Current and Overtemperature Protection
• Very Low Dropout: 170 mV Typical at 1 A
• Package: 3-mm × 3-mm SON-8
2 Applications
• RF Power in Automotive Applications
• Automotive ADAS ECUs
• Telematic Control Units
• Audio
• High-Speed I/F (PLL and VCO)
3 Description
The TPS7A8101-Q1 low-dropout linear regulator
(LDO) offers very good performance in output noise
and power-supply rejection ratio (PSRR). This LDO
uses an advanced BiCMOS process and a
PMOSFET pass device to achieve very low noise,
excellent transient response, and excellent PSRR
performance.
The TPS7A8101-Q1 device is stable with a 4.7-μF
ceramic output capacitor and uses a precision voltage
reference and feedback loop to achieve a worst-case
accuracy of 3% over all load, line, process, and
temperature variations.
This device is fully specified over the temperature
range of T_A = –40°C to 125°C and is offered in a
3-mm × 3-mm, SON-8 package with a thermal pad.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A8101-Q1
SON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Typical Application Circuit
V_I
IN
OUT
C_(IN)
TPS7A8101-Q1
V_O
R1 ^C(BYPASS)
EN
FB/SNS
GND NR
C_(NR)
R2
C_(OUT)
V_(EN)
Typical Power-Supply Ripple Rejection
100
90
80
70
60
50
40
30
20
10
10
I_O = 10 mA
I_O = 100 mA
I_O = 750 mA
I_O = 1 A
100
1k
10k 100k
1M
10M
Frequency (Hz)
G103
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.