TPS60230

illustrate

TPS60230 the optimization of charge pumps, in the backlight of the white LED color display application supplies. The device provides a constant current, and each LED is set by an external resistor. The supply voltage range is 2.7 V to 6.5 V and is ideal for all applications powered by a single lithium-ion battery or three to four nickel-cadmium, nickel-metal hydride or alkaline batteries. The TPS60230 can provide up to 25 mA per LED with a total of 125 mA input range from 3.1 V to 6.5 V with a high efficiency voltage and is a current source that utilizes a very low dropout of 1x/1.5x in Combi machine country decimal conversion technology. In addition, current-controlled charge pumps ensure low input current ripple and EMI.

characteristic

• The regulated output is matched to 0.3% current temperature
• It can drive up to 5 LEDs of 25 mAh each
• LED brightness control via PWM control signal
• High efficiency, conversion rate with 1x and 1.5x mode
• Switching frequency of 1 MHz
• 2.7 V to 6.5 V operating voltage range input
• Internal soft start limits inrush current
• Low input ripple and low EMI
• Overcurrent and overheat protection
• Undervoltage locking hysteresis
• Ultra-small 3mm × 3mm QFN packages
• apply
  • White LED backlight is used in cellular phones, smartphones, handheld computers, handheld computers, digital cameras, color displays, and camcorders
  • Key backlighting