ACE519C Datasheet, PDF (1/9 Pages) ACE Technology Co., LTD. – 500mA High PSRR, Linear Regulator

ACE519C
500mA High PSRR, Linear Regulator
Description
ACE519C series are a group of positive voltage output, low power consumption, low dropout voltage
regulators. It can provide foldback short-circuit protection and output current limit function.
ACE519C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized
on command. ACE519C can also work under a wide input voltage ranging from 2V to 7V.
ACE519C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE519C has excellent load and line transient response and good temperature characteristics, which
can assure the stability of chip and power system. And it uses trimming technique to guarantee output
voltage accuracy within ±2%.
Features
• Input voltage range: 2~7V
• Output voltage range: 1.0V~4.5V (customized on command every 0.1V step)
• Low power consumption: 35uA (Typ.)
• Low output noise (47uVRMS)
• Shutdown mode: 0.1uA
• Low dropout voltage:
300mV@300mA (Typ.)
500mV@500mA (Typ.)
• High ripple rejection:70dB@1KHz (Typ.)
• Low temperature coefficient: ±100ppm/°C
• Excellent line regulation: 0.05%/V
• Build-in chip enable circuit
• Highly accurate: ±2%
• Output current limit 700mA@V_OUT=3.3V
• Fold-back short circuit current 250mA@ V_OUT=3.3V
Application
• Power source for cellular phones and various kind of PCSs
• Battery Powered equipment
• Power Management of MP3, PDA, DSC, Mouse, PS2 Games
• Voltage Reference
• Regulation after Switching Power
Typical Performance Characteristic:
VER 1.2 1