LX8386B-xx

Features:

Three-Terminal Adjustable or Fixed Output
Guaranteed <1.3V Headroom at 1.5A (LX8386A/86B)
Output Current of 1.5A Minimum
Operates Down to 1V Dropout
   0.015% Line Regulation
   0.1% Load Regulation
Evaluation Board Available: Request LXE9001 EVALUATION KIT


Application

High Efficiency Linear Regulators
Post Regulators For Switching Power Supplies
Battery Chargers
Constant Current Regulators
ASIC & Low Voltage IC Supplies
Memory Cards
Graphics & Sound Chipsets


Pinout




Specifications

Power Dissipation ...................................................................... Internally Limited
Input Voltage................................................................................................... 10V
Input to Output Voltage Differential ................................................................ 10V
Maximum Output Current ................................................................................ 1.5A
Operating Junction Temperature
     Plastic (P, DD & DT Packages) ................................................................. 150°C
Storage Temperature Range ........................................................ -65°C to 150°C
Lead Temperature (Soldering, 10 seconds) ................................................. 300°C

Description

The LX8386/86A/86B series ICs are positive regulators designed to provide 1.5A output current. These regulators yield higher efficiency than currently available devices with all internal circuitry designed to operate down to a 1V input-to-output differential. In this product, the dropout voltage is fully specified as a function of load current.Dropout is guaranteed at a maximum of 1.3V (LX8386A/86B) and 1.5V (LX8386) at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the reference voltage to 1% (0.8% for the 8386B) initial accuracy and 2% (1% for the 8386B) over line, load and temperature.

The LX8386/86A/86B series devices are pin-compatible with earlier 3-terminal regulators, such as 117 series products. While a 10F output capacitor is required on both input and output of these new devices, this capacitor is generally included in most regulator designs.

The LX8386/86A/86B series quiescent current flows into the load, increasing efficiency. This feature contrasts with PNP regulators, where up to 10% of the output current is wasted as quiescent current. The LX8386-xxI is specified over the full industrial temperature range of -25°C to +125°C and the LX8386/86A/86B-xxC is specified over the commercial range of 0°C to +125°C.