TPS70145PWPRG4
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Texas Instruments TPS70145PWPRG4

Manufacturer No:
TPS70145PWPRG4
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG LINEAR 3.3V/1.2V 20HTSSOP
Delivery:
Payment:
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iso45001
iso9001
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Product Introduction

Overview

The TPS70145PWPRG4, part of the TPS701xx family, is a dual-output low dropout voltage regulator designed by Texas Instruments. This device is specifically tailored to provide a comprehensive power management solution for split-voltage applications, particularly in DSP (Digital Signal Processing) systems, ASICs, FPGAs, and other digital applications. The TPS70145PWPRG4 offers dual output voltages, selectable power-up sequencing, and a range of features that ensure reliable and efficient power supply.

Key Specifications

Parameter Value Unit
Input Voltage Range (VIN1, VIN2) -0.3 to +7 V
Output Voltage Range (VOUT1, VSENSE1) 5.5 V
Output Voltage Range (VOUT2, VSENSE2) 5.5 V
Output Current (Regulator 1) 500 mA
Output Current (Regulator 2) 250 mA
Quiescent Current 190 mA (typ)
Junction Temperature Range -40 to +150 °C
Storage Temperature Range -65 to +150 °C
ESD Rating, HBM 2 kV
Package Type HTSSOP-20 (PWP)

Key Features

  • Dual output voltages for split-supply applications (e.g., 3.3V/1.5V, 3.3V/1.8V, etc.)
  • Selectable power-up sequencing for DSP applications
  • Fast transient response and low dropout voltage
  • Open drain power-on reset (POR) with 120ms delay
  • Open drain power good (PG1) for Regulator 1
  • Manual reset inputs (MR1 and MR2)
  • Enable function for power management
  • Ultra-low quiescent current

Applications

The TPS70145PWPRG4 is ideal for various applications requiring dual output voltage regulators, including:

  • DSP (Digital Signal Processing) systems
  • ASIC (Application-Specific Integrated Circuit) and FPGA (Field-Programmable Gate Array) applications
  • Digital systems requiring power sequencing
  • Other split-voltage power management needs

Q & A

  1. What is the primary application of the TPS70145PWPRG4?

    The TPS70145PWPRG4 is primarily designed for split-voltage applications in DSP systems, ASICs, FPGAs, and other digital applications.

  2. What are the output voltage options for the TPS70145PWPRG4?

    The device offers various output voltage combinations such as 3.3V/1.5V, 3.3V/1.8V, 3.3V/2.5V, and dual adjustable outputs.

  3. What is the maximum output current for each regulator?

    Regulator 1 can provide up to 500 mA, while Regulator 2 can provide up to 250 mA.

  4. How does the power-up sequencing work?

    The power-up sequencing can be controlled via the SEQ terminal, allowing either VOUT1 or VOUT2 to power up first.

  5. What is the function of the RESET pin?

    The RESET pin provides an open drain power-on reset signal, indicating the status of VOUT2 and manual reset inputs.

  6. What is the quiescent current of the device?

    The quiescent current is typically 190 mA.

  7. What is the operating junction temperature range?

    The device operates within a junction temperature range of -40°C to +150°C.

  8. How does the undervoltage lockout (UVLO) circuit function?

    The UVLO circuit prevents the internal regulators from turning on until VIN1 reaches 2.5V.

  9. What is the purpose of the PG1 and PG2 pins?

    The PG1 and PG2 pins are open drain outputs that indicate the voltage status of VOUT1 and VOUT2, respectively.

  10. What is the package type of the TPS70145PWPRG4?

    The device is packaged in an HTSSOP-20 (PWP) package.

Product Attributes

Output Configuration:Positive
Output Type:Fixed
Number of Regulators:2
Voltage - Input (Max):6V
Voltage - Output (Min/Fixed):3.3V, 1.2V
Voltage - Output (Max):- 
Voltage Dropout (Max):0.28V @ 500mA, -
Current - Output:500mA, 250mA
Current - Quiescent (Iq):190 µA
Current - Supply (Max):230 µA
PSRR:60dB (1kHz)
Control Features:Enable, Power Good, Reset, Sequencing
Protection Features:Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:20-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package:20-HTSSOP
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Similar Products

Part Number TPS70145PWPRG4 TPS70148PWPRG4 TPS70745PWPRG4 TPS70145PWPG4
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Discontinued at Digi-Key Discontinued at Digi-Key Obsolete Discontinued at Digi-Key
Output Configuration Positive Positive Positive Positive
Output Type Fixed Fixed Fixed Fixed
Number of Regulators 2 2 2 2
Voltage - Input (Max) 6V 6V 6V 6V
Voltage - Output (Min/Fixed) 3.3V, 1.2V 3.3V, 1.5V 3.3V, 1.2V 3.3V, 1.2V
Voltage - Output (Max) - - - -
Voltage Dropout (Max) 0.28V @ 500mA, - 0.28V @ 500mA, - 0.14V @ 250mA, - 0.28V @ 500mA, -
Current - Output 500mA, 250mA 500mA, 250mA 250mA, 125mA 500mA, 250mA
Current - Quiescent (Iq) 190 µA 190 µA 230 µA 190 µA
Current - Supply (Max) 230 µA 230 µA - 230 µA
PSRR 60dB (1kHz) 60dB (1kHz) 60dB (1kHz) 60dB (1kHz)
Control Features Enable, Power Good, Reset, Sequencing Enable, Power Good, Reset, Sequencing Enable, Power Good, Reset, Sequencing Enable, Power Good, Reset, Sequencing
Protection Features Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 20-PowerTSSOP (0.173", 4.40mm Width) 20-PowerTSSOP (0.173", 4.40mm Width) 20-PowerTSSOP (0.173", 4.40mm Width) 20-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package 20-HTSSOP 20-HTSSOP 20-HTSSOP 20-HTSSOP

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