TPS79533DCQRG4
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Texas Instruments TPS79533DCQRG4

Manufacturer No:
TPS79533DCQRG4
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG LIN 3.3V 500MA SOT223-6
Delivery:
Payment:
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Product Introduction

Overview

The TPS79533DCQRG4 is a part of the TPS795 family of low-dropout (LDO) linear voltage regulators produced by Texas Instruments. This device is known for its ultralow noise, high power-supply rejection ratio (PSRR), and fast start-up time, making it suitable for a variety of noise-sensitive applications. The TPS79533DCQRG4 is available in a 3-mm × 3-mm VSON package and is stable with a small 1-µF ceramic capacitor on the output.

Key Specifications

Parameter Minimum Typical Maximum Unit
Output Current 0 - 500 mA
Output Voltage Range (Adjustable) 1.225 - 5.5 V
Output Voltage Accuracy -2% - 2% VOUT(nom)
Line Regulation 0.05 0.12 - %/V
Load Regulation - 3 - mV
Dropout Voltage 105 - 160 mV
Power-Supply Rejection Ratio (PSRR) at 10 kHz - 50 - dB
Output Noise Voltage (33 µVRMS with 0.1 µF CNR) - 33 - µVRMS
Start-Up Time - 50 - µs
Enable Voltage (High) 1.7 - VIN V
Enable Voltage (Low) 0.7 - - V
Operating Junction Temperature -40 - 125 °C

Key Features

  • 500-mA low-dropout regulator with enable
  • Available in fixed and adjustable (1.2-V to 5.5-V) versions
  • High PSRR (50 dB at 10 kHz)
  • Ultralow noise (33 µVRMS with 0.1 µF CNR)
  • Fast start-up time (approximately 50 µs)
  • Stable with a small 1-µF ceramic capacitor
  • Excellent load and line transient response
  • Low dropout voltage (105 mV at full load)
  • Available in 6-pin SOT-223 and 3-mm × 3-mm VSON packages

Applications

  • RF: VCOs, receivers, ADCs
  • Audio applications
  • Bluetooth, wireless LAN
  • Cellular and cordless telephones
  • Handheld organizers, PDAs

Q & A

  1. What is the maximum output current of the TPS79533DCQRG4?

    The maximum output current is 500 mA.

  2. What is the typical output noise voltage of the TPS79533DCQRG4?

    The typical output noise voltage is 33 µVRMS with a 0.1 µF CNR.

  3. What is the power-supply rejection ratio (PSRR) at 10 kHz for the TPS79533DCQRG4?

    The PSRR at 10 kHz is 50 dB.

  4. What is the start-up time of the TPS79533DCQRG4?

    The start-up time is approximately 50 µs.

  5. What are the package options for the TPS79533DCQRG4?

    The device is available in 6-pin SOT-223 and 3-mm × 3-mm VSON packages.

  6. What is the operating junction temperature range for the TPS79533DCQRG4?

    The operating junction temperature range is -40°C to 125°C.

  7. What is the dropout voltage of the TPS79533DCQRG4 at full load?

    The dropout voltage at full load is 105 mV.

  8. Is the TPS79533DCQRG4 stable with a small ceramic capacitor?

    Yes, it is stable with a small 1-µF ceramic capacitor.

  9. What are some common applications for the TPS79533DCQRG4?

    Common applications include RF, audio, Bluetooth, wireless LAN, cellular and cordless telephones, and handheld organizers.

  10. How does the enable pin function on the TPS79533DCQRG4?

    Driving the enable pin (EN) high turns on the regulator, while driving it low puts the regulator into shutdown mode.

Product Attributes

Output Configuration:Positive
Output Type:Fixed
Number of Regulators:1
Voltage - Input (Max):5.5V
Voltage - Output (Min/Fixed):3.3V
Voltage - Output (Max):- 
Voltage Dropout (Max):0.16V @ 500mA
Current - Output:500mA
Current - Quiescent (Iq):385 µA
Current - Supply (Max):- 
PSRR:59dB ~ 39dB (100Hz ~ 100kHz)
Control Features:Enable
Protection Features:Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:SOT-223-6
Supplier Device Package:SOT-223-6
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Similar Products

Part Number TPS79533DCQRG4 TPS79633DCQRG4 TPS79433DCQRG4 TPS79533DCQG4
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Discontinued at Digi-Key Discontinued at Digi-Key Discontinued at Digi-Key Discontinued at Digi-Key
Output Configuration Positive Positive Positive Positive
Output Type Fixed Fixed Fixed Fixed
Number of Regulators 1 1 1 1
Voltage - Input (Max) 5.5V 5.5V 5.5V 5.5V
Voltage - Output (Min/Fixed) 3.3V 3.3V 3.3V 3.3V
Voltage - Output (Max) - - - -
Voltage Dropout (Max) 0.16V @ 500mA 0.33V @ 1A 0.2V @ 250mA 0.16V @ 500mA
Current - Output 500mA 1A 250mA 500mA
Current - Quiescent (Iq) 385 µA 385 µA 220 µA 385 µA
Current - Supply (Max) - - - -
PSRR 59dB ~ 39dB (100Hz ~ 100kHz) 59dB ~ 42dB (100Hz ~ 100kHz) 65dB ~ 40dB (100Hz ~ 100kHz) 59dB ~ 39dB (100Hz ~ 100kHz)
Control Features Enable Enable Enable Enable
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 SOT-223-6 SOT-223-6 SOT-223-6 SOT-223-6
Supplier Device Package SOT-223-6 SOT-223-6 SOT-223-6 SOT-223-6

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