Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulators with Independent Inputs The LT3028EDHC#PBF is a low dropout (LDO) linear regulator manufactured by **Linear Technology** (now part of Analog Devices).  

### **Specifications:**  
- **Output Voltage:** Adjustable (1.22V to 19.5V)  
- **Output Current:** 500mA  
- **Dropout Voltage:** 300mV (typical at 500mA)  
- **Input Voltage Range:** 2.9V to 20V  
- **Quiescent Current:** 30µA (typical)  
- **Low Noise:** 30µVRMS (10Hz to 100kHz)  
- **PSRR:** 75dB (at 1kHz)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Lead DFN (5mm × 3mm)  

### **Descriptions and Features:**  
- **Low Dropout Voltage:** Ensures efficient operation with minimal headroom.  
- **Ultra-Low Quiescent Current:** Suitable for battery-powered applications.  
- **High PSRR:** Excellent noise rejection for sensitive circuits.  
- **Adjustable Output:** Set via external resistors.  
- **Stable with Low-ESR Capacitors:** Works with ceramic capacitors (≥2.2µF).  
- **Thermal Protection & Current Limit:** Built-in safeguards against overheating and overcurrent.  
- **Applications:** Battery-powered devices, portable instruments, and noise-sensitive systems.  

The LT3028EDHC#PBF is designed for high-performance, low-power applications requiring precise voltage regulation.

Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulators with Independent Inputs