A8601: Multiple-Output Regulator for Automotive LCD Displays


The A8601 is a fixed frequency, multiple-output supply for LCD bias. Its switching frequency can be either programmed or synchronized with an external clock signal between 350 kHz and 2.25 MHz, to minimize interference with AM and FM radio bands.

A total of five output voltages are provided, from three linear regulators and two charge-pump regulators. Each output voltage can be adjusted independently. During power-up and shutdown, the outputs are turned on and off in preprogrammed sequences, to meet the sequencing requirements for specific LCD panels.

Short-circuit protection is provided for all outputs. The boost switch is protected against overcurrent and overvoltage. Input disconnect protection is achieved by driving an external P-MOSFET.

28-pin exposed thermal pad TSSOP package allows operation at high ambient temperatures. It is lead (Pb) free with 100% matte-tin leadframe plating.


  • GPS
  • Infotainment
  • Medium LCDs

Top Features

  • Automotive-grade AEC-Q100 qualified
  • Five individual output supplies
  • Independent control of each output voltage
  • 350 kHz to 2.25 MHz switching frequency with external synchronization capability
  • <10 µA shutdown current
  • Preprogrammed power-up and shutdown sequences
  • Overcurrent, overvoltage, short circuit, and thermal overload protection

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check Stock
APEK8601KLP-01-MH DEMO BOARD -20°C to 85°C No -- Contact your
local sales rep
Distributor Stock
A8601KLPTR-T 28-lead TSSOP -40°C to 125°C Yes View Data Contact your
local sales rep
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.