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TPS780
SBVS083E – JANUARY 2007 – REVISED JANUARY 2015
TPS780xx 150-mA Low-Dropout Regulator, Ultralow-Power, IQ 500 nA With Pin-Selectable, Dual-Level Output Voltage
1 Features
•1 Low IQ: 500 nA • 150-mA, Low-Dropout Regulator With Pin-
Selectable Dual Voltage Level Output • Low Dropout: 200 mV at 150 mA • 3% Accuracy Over Load, Line, and Temperature • Available in Dual-Level, Fixed-Output Voltages
From 1.5 V to 4.2 V • Available in an Adjustable Version from 1.22 V to
5.25 V or a Dual-Level Output Version • VSET Pin Toggles Output Voltage Between Two
Factory-Programmed Voltage Levels • Stable with a 1.0-μF Ceramic Capacitor • Thermal Shutdown and Overcurrent Protection • CMOS Logic Level-Compatible Enable Pin • Available in DDC (TSOT23-5) or DRV (2-mm ×
2-mm SON-6) Package Options
2 Applications
• TI MSP430™ Attach Applications • Power Rails With Programming Mode • Dual Voltage Levels for Power-Saving Mode • Wireless Handsets, Smart Phones, PDAs, MP3
Players, and Other Battery-Operated Handheld Products
3 Description
The TPS780 family of low-dropout (LDO) regulators offer the benefits of ultralow power, miniaturized packaging, and selectable dual-level output voltage levels with the VSET pin.
The ultralow-power and dynamic voltage scaling (DVS) capability which provides dual-level output voltages let designers customize power consumption for specific applications. Designers can now shift to a lower voltage level in a battery-powered design when the microprocessor is in sleep mode, further reducing overall system power consumption. The two voltage levels are preset at the factory and are stored using EPROM and are available on fixed output voltage devices.
The TPS780 series of LDOs are designed to be compatible with the TI MSP430 and other similar products. The enable pin is compatible with standard CMOS logic. The TPS780 series also come with thermal shutdown and current limit to protect the device during fault conditions. All packages have an operating temperature range of TJ = –40°C to 125°C. For more cost-sensitive applications requiring a duallevel voltage option and only on par IQ, consider the TPS781 series, with an IQ of 1.0 μA and dynamic voltage scaling.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS780xx
SOT (5) SON (6)
2.90 mm x 1.60 mm 2.00 mm x 2.00 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Simplified Schematic
4.2V to 5.5V VIN IN
2.2V to 3.3V
OUT
VOUT
1mF 1mF
TPS780
On Off
EN
VSET High = VOUT(LOW) VSET Low = VOUT(HIGH)
VSET
GND
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.
TPS780
SBVS083E – JANUARY 2007 – REVISED JANUARY 2015
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......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4 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 ............................................ 15 7.1 Overview ................................................................. 15 7.2 Functional Block Diagram ....................................... 15 7.3 Feature Description................................................. 15 7.4 Device Functional Modes........................................ 16 7.5 Programming........................................................... 17
8 Application and Implementation ........................ 18 8.1 Application Information............................................ 18 8.2 Typical Application .................................................. 18 8.3 Do's and Don'ts ....................................................... 19
9 Power Supply Recommendations...................... 20 9.1 Powering the MSP430 Microcontroller.................... 20
10 Layout................................................................... 22 10.1 Layout Guidelines ................................................. 22 10.2 Layout Example .................................................... 23 10.3 .