Buck Converter

AnalogicTech new 1.5A and dell inspiron 510m battery 1.2A step-down converters extend battery life

Specifically for mobile consumer electronic devices developer of power management semiconductors Advanced Analogic Technologies Co., Ltd. (AnalogicTech), today announced the AAT1112 and AAT1145 numbered as the two devices, respectively, 1.5A and 1.2A constant frequency, constant-current mode down voltage converter. These two new current-mode converter in a small 3×3mmTDFN package without the need for external compensation components, while providing a highly compact design dell inspiron 6000 battery, easy to use solution.

“A lot of portable electronic devices include circuits require 3.3V supply voltage,” BillWeiss AnalogicTech product line director, said, “and the voltage-mode buck converter compared to the AAT1112 and AAT1145 current-mode difference is that they full rated current can be converted into lithium-ion battery input 3.3V output. These two conversion makes the overall program size has become the smallest, so the system designer no longer need to repeatedly confirm the normal external compensation components. ”

To extend sony vgp-bps2 , sony vgp-bps2a battery life

AAT1112 supports up to 1.5A output current, input voltage range of 2.4V to 5.5V. AAT1145 supports up to 1.2A output current, input voltage range of 2.5V to 5.5V, output voltage can be adjusted in the range of 0.6V to VIN. Run-time through the low dropout 100% duty cycle and the provision of up to 95% of the power efficiency, these two converters help extend battery life.

Slope compensated current mode pulse width modulation (PWM) control supports the use of the minimum inductance as low as 1μH, while a high 1.5MHz and 1.4MHz switching frequency supports the use of small external components, thus reducing the size of the entire program.

AAT1112 and AAT1145 with built-in soft-start sony vgp-bps2b , sony vgp-bps2c, short-circuit and thermal protection, but also with a lower than low 1μA shutdown current.

Price and Availability

Both devices are rated for operating temperature range -40 to +85 ℃, AAT1112 step-down converter has adopted lead-free 3 × 3mm12-pin TDFN package and Pb-free 2.75 × 3mm12 pin TSOPJW package. TDFN package, the order quantity of 1000, when each piece is priced at 1.64 U.S. dollars, TSOPJW encapsulated in the order quantity of 1000, when each piece is priced at 1.57 U.S. dollars. AAT1145 step-down converter uses lead-free 3 × 3mm10-pin TDFN package, order quantity of 1000 units is priced sony VGP-BPL2 , sony VGP-BPL2C at 1.51 U.S. dollars per piece.