Linear Voltage Regulator IC Positive Fixed 1 Output 500mA SOT-23-5
The TLV75533PDBVR is a low-dropout (LDO) linear voltage regulator designed to provide a stable 3.3 V output from a higher input voltage source. It features ultra-low quiescent current and high power-supply rejection ratio (PSRR), making it ideal for battery-powered and noise-sensitive applications such as IoT devices, portable electronics, and RF circuits. The device is optimized for fast transient response and stable operation with small ceramic output capacitors.
Key Features
Fixed output voltage: 3.3 V
Low dropout voltage (typ. ~200 mV at full load)
Ultra-low quiescent current (typ. 25 µA)
High PSRR for noise-sensitive applications
Stable with small ceramic capacitors (≥1 µF)
Thermal shutdown and overcurrent protection
Available in compact SOT-23-5 package (DBV)
Absolute Maximum Ratings
Input voltage: –0.3 V to 6.5 V
Output voltage: –0.3 V to (VIN + 0.3 V)
Operating junction temperature: –40°C to +125°C
Storage temperature range: –65°C to +150°C
Recommended Operating Conditions
Input voltage range: 1.45 V to 5.5 V
Output voltage: 3.3 V (fixed)
Output current: up to 500 mA
Operating temperature range: –40°C to +125°C
Electrical Characteristics (Typical unless otherwise noted)
Output voltage accuracy: ±1%
Dropout voltage: ~200 mV @ 500 mA
Quiescent current: ~25 µA
PSRR: up to 70 dB (at 1 kHz)
Line regulation: <0.05%/V
Load regulation: <0.5%
Pin Configuration (SOT-23-5)
Pin 1: IN – Input voltage
Pin 2: GND – Ground
Pin 3: EN – Enable (active high)
Pin 4: NC – No connect
Pin 5: OUT – Regulated output
Typical Application
Power management for microcontrollers and sensors
Battery-powered portable devices
RF and analog circuits requiring low noise supply
IoT and wearable electronics
Protection Features
Thermal shutdown protection
Overcurrent protection
Undervoltage lockout (UVLO)
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