TPS780 Datasheet, PDF (1/24 Pages) Texas Instruments – 150mA, Low-Dropout Regulator, Ultralow-Power, IQ 500nA with Pin-Selectable, Dual-Level Output Voltage

TPS780 Series
www.ti.com
SBVS083B – JANUARY 2007 – REVISED MARCH 2008
150mA, Low-Dropout Regulator, Ultralow-Power, I_Q 500nA
with Pin-Selectable, Dual-Level Output Voltage
FEATURES
1
•2 Low I_Q: 500nA
• 150mA, Low-Dropout Regulator with
Pin-Selectable Dual Voltage Level Output
• Low Dropout: 200mV at 150mA
• 3% Accuracy Over Load/Line/Temperature
• Available in Dual-Level, Fixed Output Voltages
from 1.5V to 4.2V Using Innovative Factory
EPROM Programming
• Available in an Adjustable Version from 1.22V
to 5.25V or a Dual-Level Output Version
• V_SET Pin Toggles Output Voltage Between Two
Factory-Programmed Voltage Levels
• Stable with a 1.0µF Ceramic Capacitor
• Thermal Shutdown and Overcurrent Protection
• CMOS Logic Level-Compatible Enable Pin
• Available in DDC (TSOT23-5) or DRV (2mm ×
2mm SON-6) Package Options
APPLICATIONS
• TI MSP430 Attach Applications
• Power Rails with Programming Mode
• Dual Voltage Levels for Power-Saving Mode
• Wireless Handsets, Smartphones, PDAs, MP3
Players, and Other Battery-Operated Handheld
Products
DESCRIPTION
The TPS780 family of low-dropout (LDO) regulators
offer the benefits of ultralow power (I_Q = 500nA),
miniaturized packaging (2×2 SON-6), and selectable
dual-level output voltage levels. An adjustable version
is also available, but does not have the capability to
shift voltage levels.
TPS780DDC
TSOT23-5
(TOP VIEW)
IN 1
GND 2
EN 3
5 OUT
4
V_SET/FB
The V_SET pin allows the end user to switch between
two voltage levels on-the-fly through a
microprocessor-compatible input. This LDO is
designed specifically for battery-powered applications
where dual-level voltages are needed. With ultralow
I_Q (500nA), microprocessors, memory cards, and
smoke detectors are ideal applications for this device.
The ultralow-power and selectable dual-level output
voltages allow designers to 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
through a unique architecture using an EPROM. The
EPROM technique allows for numerous output
voltage options between V_SET low (1.5V to 4.2V) and
V_SET high (2.0V to 3.0V) in the fixed output version
only. See the Voltage Options table in this data sheet
or consult with your local factory representative for
exact voltage options and ordering information;
minimum order quantities may apply.
The TPS780 series are designed to be compatible
with the TI MSP430 and other similar products. The
enable pin is compatible with standard CMOS logic.
This LDO is stable with any output capacitor greater
than 1.0µF. Therefore, implementations of this device
require minimal board space because of miniaturized
packaging and a potentially small output capacitor.
The TPS780 series I_Q (500nA) also come with
thermal shutdown and current limit to protect the
device during fault conditions. All packages have an
operating temperature range of T_J = –40°C to
+125°C. For more cost-sensitive applications
requiring a dual-level voltage option and only on par
I_Q, consider the TPS781 series, with an I_Q of 1.0µA
and dynamic voltage scaling.
TPS780DRV
2mm x 2mm SON-6
(TOP VIEW)
OUT 1
6 IN
N/C
2
Thermal
Pad
5
GND
V_SET/FB 3
4 EN
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2008, Texas Instruments Incorporated