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LDO Regulator Pos 3.3V 0.25A 8-Pin HVSSOP EP T/R

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TPS79433DGNT General Description

The TPS794xx family of low-dropout (LDO) linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses in small outline, MSOP-8 PowerPAD? and SOT223-6 packages. Each device in the family is stable with a small 2.2-μF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 155 mV at 250 mA). Each device achieves fast start-up times (approximately 50 μs with a 0.001-μF bypass capacitor) while consuming low quiescent current (170 μA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than μA. The TPS79428 exhibits approximately 32 μVRMS of output voltage noise at 2.8 V output with a 0.1-μF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low noise features as well as the fast response time.

Texas Instruments, Inc Inventory

Key Features

  • 250-mA Low-Dropout Regulator With Enable
  • Available in Fixed and Adjustable (1.2 V to
    5.5 V) Versions
  • High PSRR (60 dB at 10 kHz)
  • Ultralow Noise (32 μVrms, TPS79428)
  • Fast Start-Up Time (50 μs)
  • Stable With a 2.2-μF Ceramic Capacitor
  • Excellent Load/Line Transient Response
  • Very Low Dropout Voltage (155 mV at Full Load)
  • Available in MSOP-8 and SOT223-6 Packages
    • RF: VCOs, Receivers, ADCs
    • Audio
    • Bluetooth?, Wireless LAN
    • Cellular and Cordless Telephones
    • Handheld Organizers, PDAs

PowerPAD is a trademark of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
All trademarks are the property of their respective owners.

Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Category Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - Linear Mfr Texas Instruments
Series - Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Active 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) 0.2V @ 250mA
Current - Output 250mA Current - Quiescent (Iq) 220 µA
PSRR 65dB ~ 40dB (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 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package 8-HVSSOP Base Product Number TPS79433
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25
Vin (max) (V) 5.5 Vin (min) (V) 2.7
Vout (max) (V) 5.4 Vout (min) (V) 1.22
Fixed output options (V) 1.8, 2.5, 2.8, 3, 3.3 Noise (µVrms) 32
Iq (typ) (mA) 0.17 Thermal resistance θJA (°C/W) 53
Rating Catalog Load capacitance (min) (µF) 2.2
Regulated outputs (#) 1 Features Enable
Accuracy (%) 3 PSRR at 100 KHz (dB) 38
Dropout voltage (Vdo) (typ) (mV) 155 Operating temperature range (°C) -40 to 85
feature-type LDO feature-number-of-outputs 1
feature-polarity Positive feature-accuracy- ±3
feature-process-technology feature-output-type Fixed
feature-output-voltage-v 3.3 feature-maximum-output-current-a 0.25
feature-minimum-input-voltage-v 2.7 feature-maximum-input-voltage-v 5.5
feature-maximum-dropout-voltage-current-v 0.2@250mA feature-line-regulation 0.05%/V(Typ)
feature-load-regulation 10mV(Typ) feature-maximum-power-dissipation-mw 2600
feature-packaging Tape and Reel feature-rad-hard No
feature-pin-count 8 feature-supplier-package HVSSOP EP
feature-standard-package-name SOP feature-cecc-qualified No
feature-esd-protection Yes feature-escc-qualified
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-eccn-code EAR99
feature-svhc Yes feature-svhc-exceeds-threshold No

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