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TPS79133 Datasheet Preview

TPS79133 Datasheet

Fast RF 100-mA Low-Dropout Linear Regulators

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TPS791
SLVS325D – MARCH 2001 – REVISED FEBRUARY 2018
TPS791
Ultralow Noise, High PSRR, Fast RF 100-mA Low-Dropout Linear Regulators
1 Features
1 100-mA Low-Dropout Regulator With EN
• Available in 1.8-V, 3.3-V, 4.7-V, and Adj.
• High PSRR (70 dB at 10 kHz)
• Ultralow Noise (15 µVRMS)
• Fast Start-Up Time (63 µs)
• Stable With Any 1-µF Ceramic Capacitor
• Excellent Load, Line Transient
• Very Low Dropout Voltage (38 mV at Full Load,
TPS79147)
• 5-Pin SOT23 (DBV) Package
• TPS792xx Provides EN Options
2 Applications
• Powering VCOs and PLLs
• Bluetooth and Wireless LAN
• Portable and Battery Operated
3 Description
The TPS791 device is a low-dropout (LDO) low-
power linear voltage regulator that features high
power-supply rejection ratio (PSRR), ultralow noise,
fast start-up, and excellent line and load transient
responses in a small outline, SOT23 package. The
device is stable, with a small 1-µF ceramic capacitor
on the output. The TPS791 uses an advanced,
proprietary BiCMOS fabrication process to yield
extremely low dropout voltages (for example, 38 mV
at 100 mA, TPS79147). This device achieves fast
start-up times (approximately 63 µs with a 0.001-µF
bypass capacitor) while consuming very low
quiescent current (170 µA typical). Moreover, when
the device is placed in standby mode, the supply
current is reduced to less than 1 µA. The TPS79118
exhibits approximately 15 µVRMS of output voltage
noise with a 0.1-µF bypass capacitor. Applications
with analog components that are noise sensitive,
such as portable RF electronics, benefit from the high
PSRR and low noise features as well as the fast
response time.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS791
SOT23 (5)
SOT23 (6)
2.90 mm × 1.60 mm
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic: Fixed Output
VIN IN OUT
1 PF
TPS791
VOUT
1 PF
EN BYPASS
VEN
GND
0.1 PF
Copyright © 2018, Texas Instruments Incorporated
Simplified Schematic: Adjustable Output
VIN IN
1 PF
OUT
FB
TPS79101
100 pF
VOUT
1 PF
EN BYPASS
VEN
GND
PF
Copyright © 2017, Texas Instruments Incorporated
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.




etcTI

TPS79133 Datasheet Preview

TPS79133 Datasheet

Fast RF 100-mA Low-Dropout Linear Regulators

No Preview Available !

TPS791
SLVS325D – MARCH 2001 – REVISED FEBRUARY 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 6
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagrams ..................................... 12
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 15
8 Application and Implementation ........................ 16
8.1 Application Information............................................ 16
8.2 Typical Application ................................................. 16
8.3 Do's and Don'ts ....................................................... 17
9 Power Supply Recommendations...................... 18
10 Layout................................................................... 18
10.1 Layout Guidelines ................................................. 18
10.2 Layout Example .................................................... 18
11 Device and Documentation Support ................. 19
11.1 Receiving Notification of Documentation Updates 19
11.2 Community Resources.......................................... 19
11.3 Trademarks ........................................................... 19
11.4 Electrostatic Discharge Caution ............................ 19
11.5 Glossary ................................................................ 19
12 Mechanical, Packaging, and Orderable
Information ........................................................... 19
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (May 2002) to Revision D
Page
• Added Device Information table, Simplified Schematic figures to page 1, ESD Ratings table, Thermal Information
table, Pin Configuration and Functions section, Overview section, Feature Description section, Device Functional
Modes section, Application and Implementation section, Power Supply Recommendations section, Layout section,
Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section ................... 1
• Changed TPS791xx to TPS791 throughout document ......................................................................................................... 1
• Changed Applications section ............................................................................................................................................... 1
• Changed Description section ................................................................................................................................................. 1
• Deleted Ordering Information table ........................................................................................................................................ 3
• Changed EN pin description .................................................................................................................................................. 3
• Added I/O data for GND pin .................................................................................................................................................. 3
• Deleted Package Dissipation Rating table ............................................................................................................................. 3
• Changed VI to VIN, IO to IOUT, CO to COUT, Co(byp) and C(byp) to CBYPASS throughout document .............................................. 3
• Changed formula in footnote 1 of Recommended Operating Conditions table...................................................................... 4
• Added VREF parameter to Electrical Characteristics table.................................................................................................... 5
• Changed VCC to VIN in test conditions of UVLO threshold and UVLO hysteresis parameters ............................................... 5
• Added PSRR and VDO symbols to Power-supply ripple rejection and Dropout voltage parameters...................................... 5
• Added conditions statement to Typical Characteristics section ............................................................................................ 6
• Changed IOUT to CBYPASS in TPS79118 Output Spectral Noise Density vs Frequency figure ................................................ 7
• Changed IOUT to CBYPASS in TPS79133 Output Spectral Noise Density vs Frequency figure ................................................ 7
• Changed third bullet in Normal Operation section ............................................................................................................... 15
• Changed first bullet in Disabled section .............................................................................................................................. 15
• Changed VEN column in Device Functional Mode Comparison table................................................................................... 15
• Added active-low to Application Information description ..................................................................................................... 16
2 Submit Documentation Feedback
Product Folder Links: TPS791
Copyright © 2001–2018, Texas Instruments Incorporated


Part Number TPS79133
Description Fast RF 100-mA Low-Dropout Linear Regulators
Maker etcTI
Total Page 30 Pages
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