TI Introduces New Low Drop-Out Voltage Regulators Optimized for Portable Radio Frequency Systems

Additional New LDO Families Optimized for Battery Management and Low-Current

Microcontroller Applications



Apr 04, 2001, 01:00 ET from Texas Instruments Incorporated Semiconductor Group

    DALLAS, April 4 /PRNewswire/ -- Texas Instruments Incorporated (NYSE:   TXN)
 (TI) announced today a new family of low drop-out (LDO) linear regulators with
 extremely low noise characteristics.  The new LDOs will enable wireless
 manufacturers to meet radio frequency (RF) specifications with minimal noise
 and low power consumption, giving end users better signal quality and longer
 usage time.  Other new families of LDOs, also announced today by TI, target
 battery management applications and systems based on low-current
 microcontrollers, such as TI's MSP430.  The new LDO product families optimize
 TI's leadership power supply technology to enable a wide range of portable
 systems for more efficient operation, conserving power and prolonging battery
 life between charges.  (See power.ti.com/aap6062u).
     TI's TPS791xx/TPS792xx LDOs offer exceptionally low noise that improves
 signal quality in handheld wireless systems.  Output noise characteristics
 rated at 27 microvolts provide a high degree of accuracy in operation, while a
 high power supply rejection ratio (PSRR), measuring 75 decibels at
 10 kilohertz (kHz), helps block system noise in communications equipment.  An
 advanced proprietary BiCMOS process provides a low quiescent current and a
 very low dropout voltage of just 50 millivolts under a full 100-milliamp load,
 saving power.
     Quick response to wake-up calls comes from a fast startup time of
 50 microseconds.  Fast transient response improves system accuracy when
 operating conditions change.  The regulators are stable when used with
 inexpensive ceramic capacitors, serving to keep system costs down.  All of
 these features make the TPS791/792 LDOs among the best solutions available for
 noise-sensitive applications, such as wireless phones, Bluetooth, PLL, modems
 and pagers, wireless local-area and home networks and other portable
 communications equipment.
     "As applications become more specialized and demanding, TI is taking steps
 to deliver power supply solutions that are optimized to meet the requirements
 of specific markets," said Siamak Bastami, development manager, power
 management products, TI.  "The new TPS791/792 LDO regulator family is ideal
 for wireless phones and other RF applications."
 
     New Battery Management LDOs
     Other new LDOs from TI are also optimized for targeted applications.  The
 TPS71533 is intended for powering integrated circuits in battery management
 applications.  With an output current of 50 milliamps, the device features an
 input voltage range up to 24 V for protection during charging cycles and a
 very low quiescent current (3 microamps) that prolongs battery life between
 charges.  To meet the space constraints common in handheld battery-powered
 equipments, the TPS71533 is offered in the tiny SC70 surface-mount package.
 The TPS71533 is the only device in its class available in a SC70 Pico package,
 which requires just half the space of the SOT23 package conventionally used in
 low current LDOs.  The flexible TPS71533 supports the industry's leading
 battery management devices, including solutions from TI.
 
     LDOs Targeting Microcontrollers
     The new TPS797xx LDO family saves both power and space in systems based on
 TI's MSP430 microcontrollers and other emerging low-current microcontrollers.
 The family features an extremely low typical quiescent current of just
 1.3 mircoamps at its full 10 mA output rating, minimizing current drain in
 electronic meters and gauges, handheld instruments and similar applications.
 The TPS797xx regulators are the only comparable devices available in a small-
 footprint Pico package and featuring a Power Good output for microcontroller
 protection.
 
     Availability, Packaging and Pricing
     Scheduled availability, packaging and planned pricing for initial device
 releases in TI's new LDO families are shown in the following table.
 
     Device      Output            Availability      Volume       Pricing
                                                     Production   (1K units)
                               Package       Samples
     TPS79101    Adjustable    SOT23          Now    Now          $0.50
     TPS79118    1.8 V         SOT23          Now    Now          $0.50
     TPS79133    3.3 V         SOT23          Now    Now          $0.50
     TPS79147    4.7 V         SOT23          Now    Now          $0.50
     TPS79201    Adjustable    SOT23          Now    Now          $0.50
     TPS79225    2.5 V         SOT23          Now    Now          $0.50
     TPS79228    2.8 V         SOT23          Now    Now          $0.50
     TPS79230    3.0 V         SOT23          Now    Now          $0.50
     TPS71533    3.3 V         SC70 (Pico)    Now    June 2001    $0.37
     TPS79718    1.8 V         SC70 (Pico)    Now    June 2001    $0.37
     TPS79730    3.0 V         SC70 (Pico)    Now    June 2001    $0.37
     TPS79733    3.3 V         SC70 (Pico)    Now    June 2001    $0.37
 
     Texas Instruments Incorporated is the world leader in digital signal
 processing and analog technologies, the semiconductor engines of the Internet
 age.  The company's businesses also include sensors and controls, and
 educational and productivity solutions.  TI is headquartered in Dallas, Texas,
 and has manufacturing or sales operations in more than 25 countries.
     Texas Instruments is traded on the New York Stock Exchange under the
 symbol TXN.  More information is located on the World Wide Web at:
 http://www.ti.com
 
      Please refer all reader inquiries to:
                     Texas Instruments Incorporated
                     Semiconductor Group, SC-01065
                     Literature Response Center
                     P.O. Box 954
                     Santa Clarita, CA  91380
                     1-800-477-8924, ext. 4500
 
 

SOURCE Texas Instruments Incorporated Semiconductor Group
    DALLAS, April 4 /PRNewswire/ -- Texas Instruments Incorporated (NYSE:   TXN)
 (TI) announced today a new family of low drop-out (LDO) linear regulators with
 extremely low noise characteristics.  The new LDOs will enable wireless
 manufacturers to meet radio frequency (RF) specifications with minimal noise
 and low power consumption, giving end users better signal quality and longer
 usage time.  Other new families of LDOs, also announced today by TI, target
 battery management applications and systems based on low-current
 microcontrollers, such as TI's MSP430.  The new LDO product families optimize
 TI's leadership power supply technology to enable a wide range of portable
 systems for more efficient operation, conserving power and prolonging battery
 life between charges.  (See power.ti.com/aap6062u).
     TI's TPS791xx/TPS792xx LDOs offer exceptionally low noise that improves
 signal quality in handheld wireless systems.  Output noise characteristics
 rated at 27 microvolts provide a high degree of accuracy in operation, while a
 high power supply rejection ratio (PSRR), measuring 75 decibels at
 10 kilohertz (kHz), helps block system noise in communications equipment.  An
 advanced proprietary BiCMOS process provides a low quiescent current and a
 very low dropout voltage of just 50 millivolts under a full 100-milliamp load,
 saving power.
     Quick response to wake-up calls comes from a fast startup time of
 50 microseconds.  Fast transient response improves system accuracy when
 operating conditions change.  The regulators are stable when used with
 inexpensive ceramic capacitors, serving to keep system costs down.  All of
 these features make the TPS791/792 LDOs among the best solutions available for
 noise-sensitive applications, such as wireless phones, Bluetooth, PLL, modems
 and pagers, wireless local-area and home networks and other portable
 communications equipment.
     "As applications become more specialized and demanding, TI is taking steps
 to deliver power supply solutions that are optimized to meet the requirements
 of specific markets," said Siamak Bastami, development manager, power
 management products, TI.  "The new TPS791/792 LDO regulator family is ideal
 for wireless phones and other RF applications."
 
     New Battery Management LDOs
     Other new LDOs from TI are also optimized for targeted applications.  The
 TPS71533 is intended for powering integrated circuits in battery management
 applications.  With an output current of 50 milliamps, the device features an
 input voltage range up to 24 V for protection during charging cycles and a
 very low quiescent current (3 microamps) that prolongs battery life between
 charges.  To meet the space constraints common in handheld battery-powered
 equipments, the TPS71533 is offered in the tiny SC70 surface-mount package.
 The TPS71533 is the only device in its class available in a SC70 Pico package,
 which requires just half the space of the SOT23 package conventionally used in
 low current LDOs.  The flexible TPS71533 supports the industry's leading
 battery management devices, including solutions from TI.
 
     LDOs Targeting Microcontrollers
     The new TPS797xx LDO family saves both power and space in systems based on
 TI's MSP430 microcontrollers and other emerging low-current microcontrollers.
 The family features an extremely low typical quiescent current of just
 1.3 mircoamps at its full 10 mA output rating, minimizing current drain in
 electronic meters and gauges, handheld instruments and similar applications.
 The TPS797xx regulators are the only comparable devices available in a small-
 footprint Pico package and featuring a Power Good output for microcontroller
 protection.
 
     Availability, Packaging and Pricing
     Scheduled availability, packaging and planned pricing for initial device
 releases in TI's new LDO families are shown in the following table.
 
     Device      Output            Availability      Volume       Pricing
                                                     Production   (1K units)
                               Package       Samples
     TPS79101    Adjustable    SOT23          Now    Now          $0.50
     TPS79118    1.8 V         SOT23          Now    Now          $0.50
     TPS79133    3.3 V         SOT23          Now    Now          $0.50
     TPS79147    4.7 V         SOT23          Now    Now          $0.50
     TPS79201    Adjustable    SOT23          Now    Now          $0.50
     TPS79225    2.5 V         SOT23          Now    Now          $0.50
     TPS79228    2.8 V         SOT23          Now    Now          $0.50
     TPS79230    3.0 V         SOT23          Now    Now          $0.50
     TPS71533    3.3 V         SC70 (Pico)    Now    June 2001    $0.37
     TPS79718    1.8 V         SC70 (Pico)    Now    June 2001    $0.37
     TPS79730    3.0 V         SC70 (Pico)    Now    June 2001    $0.37
     TPS79733    3.3 V         SC70 (Pico)    Now    June 2001    $0.37
 
     Texas Instruments Incorporated is the world leader in digital signal
 processing and analog technologies, the semiconductor engines of the Internet
 age.  The company's businesses also include sensors and controls, and
 educational and productivity solutions.  TI is headquartered in Dallas, Texas,
 and has manufacturing or sales operations in more than 25 countries.
     Texas Instruments is traded on the New York Stock Exchange under the
 symbol TXN.  More information is located on the World Wide Web at:
 http://www.ti.com
 
      Please refer all reader inquiries to:
                     Texas Instruments Incorporated
                     Semiconductor Group, SC-01065
                     Literature Response Center
                     P.O. Box 954
                     Santa Clarita, CA  91380
                     1-800-477-8924, ext. 4500
 
 SOURCE  Texas Instruments Incorporated Semiconductor Group

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