TPS7A7100_15 Datasheet, PDF (1/41 Pages) Texas Instruments – TPS7A7100 1-A, Fast-Transient, Low-Dropout Voltage Regulator

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TPS7A7100
SBVS189F – MARCH 2012 – REVISED SEPTEMBER 2015
TPS7A7100 1-A, Fast-Transient, Low-Dropout Voltage Regulator
1 Features
•1 Low-Dropout Voltage: 140 mV at 1 A
• V_IN Range: 1.5 V to 6.5 V
• Configurable Fixed V_OUT Range: 0.9 V to 3.5 V
• Adjustable V_OUT Range: 0.9 V to 5 V
• Very Good Load- and Line-Transient Response
• Stable With Ceramic Output Capacitor
• 1.5% Accuracy Overline, Overload, and
Overtemperature
• Programmable Soft Start
• Power Good (PG) Output
• 3-mm × 3-mm QFN-16 and 5-mm × 5-mm QFN-
20 Packages
2 Applications
• Wireless Infrastructure: SerDes, FPGA, DSP™
• RF Components: VCO, ADC, DAC, LVDS
• Set-Top Boxes: Amplifier, ADC, DAC, FPGA, DSP
• Wireless LAN, Bluetooth^®
• PCs and Printers
• Audio and Visual
1.5 V
C_IN
C_SS
Optional
Typical Application Circuit
IN
PG
TPS7A7100
EN
SS
OUT
SNS
FB
GND
1.2 V = 0.5 V_ref
+ 100 mV
C_FF
C_OUT
+
+
200
400
mV
mV
50mV
100mV
1.6V
200mV 400mV 800mV
3 Description
The TPS7A7100 low-dropout (LDO) voltage regulator
is designed for applications seeking very-low dropout
capability (140 mV at 1 A) with an input voltage from
1.5 V to 6.5 V. The TPS7A7100 offers an innovative,
user-configurable, output-voltage setting from 0.9 V to
3.5 V, eliminating external resistors and any
associated error.
The TPS7A7100 has very fast load-transient
response, is stable with ceramic output capacitors,
and supports a better than 2% accuracy over line,
load, and temperature. A soft-start pin allows for an
application to reduce inrush into the load.
Additionally, an open-drain, power-good signal allows
for sequencing power rails.
The TPS7A7100 is available in 3-mm × 3-mm,
16-pin VQFN and 5-mm × 5-mm, 20-pin VQFN
packages.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A7100
VQFN (16)
VQFN (20)
3.00 mm × 3.00 mm
5.00 mm × 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Load Transient Response With
Seven Different Outputs:
1.5 V_IN to 1 V_OUT, 1.5 V_IN to 1.2 V_OUT,
1.8 V_IN to 1.5 V_OUT, 2.5 V_IN to 1.8 V_OUT,
3 V_IN to 2.5 V_OUT, 3.3 V_IN to 3 V_OUT,
and 5.5 V_IN to 5 V_OUT
6
5.5V to 5.0V
3
Output Current Slew Rate: 1A/µs
5
4 _{Output Current}
3
3.3V to 3.0V 2.5V to 1.8V
2
3.0V to 2.5V
1.8V to 1.5V
2
1
1
1.5V to 1.2V 1.5V to 1.0V
0
0
Time (100µs/div)
G310
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.