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TPS799-Q1 Datasheet(PDF) 8 Page - Texas Instruments

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Part No. TPS799-Q1
Description  200 mA, Low Quiescent Current, Ultralow Noise, High PSRR, Low Dropout, Linear Regulators
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS799-Q1 Datasheet(HTML) 8 Page - Texas Instruments

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Thermal
Shutdown
UVLO
Current
Limit
2mA
Overshoot
Detect
500k
Quickstart
1.193V
Bandgap
IN
EN
NR
OUT
GND
400W
TPS799-Q1
SBVS097F – MARCH 2008 – REVISED JUNE 2015
www.ti.com
7 Detailed Description
7.1 Overview
The TPS799xx-Q1 family of low-dropout (LDO) regulators combines the high performance required of many RF
and precision analog applications with ultralow current consumption. High PSRR is provided by a high-gain, high-
bandwidth error loop with good supply rejection at very low headroom (VIN – VOUT). A noise-reduction pin is
provided to bypass noise generated by the band-gap reference and to improve PSRR, while a quick-start circuit
quickly charges this capacitor at start-up. The combination of high performance and low ground current also
make these devices an excellent choice for portable applications. All versions have thermal and overcurrent
protection, and are fully specified from –40°C to 125°C.
The TPS799xx-Q1 family also features inrush current protection with an EN toggle start-up, and overshoot
detection at the output. When the EN toggle is used to start the device, current limit protection is immediately
activated, restricting the inrush current to the device. If voltage at the output overshoots 5% from the nominal
value, a pulldown resistor reduces the voltage to normal operating conditions, as shown in Functional Block
Diagrams.
7.2 Functional Block Diagrams
Figure 10. Fixed-Voltage Version
8
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Copyright © 2008–2015, Texas Instruments Incorporated
Product Folder Links: TPS799-Q1


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