Description:
The L7900 series of three-terminal negative regulators is available in TO-220, TO-220FP, TO-3 and D2PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation; furthermore, having the same voltage option as the L7800 positive standard series, they are particularly suited for split power supplies. If adequate heat sinking is provided, they can deliver over 1.5A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.
Application:
Adjustable power supplies
Constant current regulator
Feature:
Series: L7909C
Package/Case: TO-220-3
Output Voltage: - 8 V
Output Current: 1.5 A
Output Type: Fixed
Input Voltage MAX: - 35 V
Maximum Operating Temperature: + 125 C
Minimum Operating Temperature: 0 C
Load Regulation: 160 mV
Line Regulation: 160 mV
Input Voltage MIN: -10.5 V
Polarity: Negative
PSRR / Ripple Rejection - Typ: 60 dB
Unit Weight: 2.5 g
Thermal overload protection
Short circuit protection
Output transition SOA protection
Output tolerance 2% (AC version) or 4% (C version) at 25°C