Overview
The LT1963AES8-3.3#TRPBF is a low dropout (LDO) linear voltage regulator manufactured by Analog Devices Inc. This regulator is designed to provide a stable 3.3V output voltage with a high current capability of up to 1.5A. It is optimized for fast transient response and features low output noise, making it suitable for sensitive RF supply applications and other demanding environments.
The device is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package and operates over a temperature range of –40°C to 125°C. It includes internal protection circuitry such as reverse battery protection, current limiting, thermal limiting, and output short-circuit current limit, ensuring robust operation in various conditions.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Part Number | LT1963AES8-3.3#TRPBF | |
| Package | SOIC-8 | |
| Output Voltage | 3.3V | V |
| Output Current | 1.5A | A |
| Dropout Voltage | 340mV (at 1.5A) | mV |
| Quiescent Current | 1mA (typ), <1µA (shutdown) | mA/µA |
| Output Noise | Very low | |
| Ripple Rejection | 63dB (at 120Hz) | dB |
| Temperature Range | –40°C to 125°C | °C |
| Protection Features | Reverse battery protection, current limiting, thermal limiting, output short-circuit current limit |
Key Features
- Low dropout voltage of 340mV at 1.5A output current
- Fast transient response and low output noise, ideal for sensitive RF supply applications
- Ultra-low quiescent current of 1mA (typ), dropping to <1µA in shutdown
- Stable operation with output capacitors as low as 10µF
- Internal protection circuitry including reverse battery protection, current limiting, thermal limiting, and output short-circuit current limit
- Adjustable output voltage down to 1.24V (for adjustable versions)
- Micro-power shutdown feature
- 2% output voltage accuracy over temperature
- Compatible with ceramic and tantalum capacitors
Applications
- Battery-powered and portable systems
- Datacom systems
- Sensitive RF supply applications
- Post-regulators for switching supplies
- Logic power supplies requiring low noise and fast transient response
Q & A
- What is the output voltage of the LT1963AES8-3.3#TRPBF?
The output voltage is fixed at 3.3V.
- What is the maximum output current of the LT1963AES8-3.3#TRPBF?
The maximum output current is 1.5A.
- What is the dropout voltage of the LT1963AES8-3.3#TRPBF at 1.5A output current?
The dropout voltage is 340mV at 1.5A output current.
- What is the quiescent current of the LT1963AES8-3.3#TRPBF?
The quiescent current is typically 1mA, dropping to less than 1µA in shutdown.
- What are the protection features of the LT1963AES8-3.3#TRPBF?
The device includes reverse battery protection, current limiting, thermal limiting, and output short-circuit current limit.
- What is the temperature range of the LT1963AES8-3.3#TRPBF?
The device operates over a temperature range of –40°C to 125°C.
- What type of capacitors can be used with the LT1963AES8-3.3#TRPBF?
The device is compatible with ceramic and tantalum capacitors.
- What is the ripple rejection of the LT1963AES8-3.3#TRPBF at 120Hz?
The ripple rejection is 63dB at 120Hz.
- What are some typical applications of the LT1963AES8-3.3#TRPBF?
Typical applications include battery-powered and portable systems, datacom systems, sensitive RF supply applications, and post-regulators for switching supplies.
- What is the package type of the LT1963AES8-3.3#TRPBF?
The device is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package.
