DC-DC升压IC，HMXX1C, XC6328, XC6371, RT9261B, AIC1642

HMXX1C series are CMOS based PFM step up DC-DC converter. The converter can start up by supply voltage as low as 0.8V, and capable of delivering maximum 200mA output current at 3.3V output with 1.8V input voltage. Quiescent current drawn from power source is as low as 20uA. All of these features make HMXX1C series be suitable for the portable devices, which are supplied by a single battery to four cell batteries.

To reduce the noise caused by the switch regulator, HMXX1C is well considered in circuit design and manufacture. So that the interferer to other circuits by the device is reduced greatly.

HMXX1C integrates stable reference circuits and trimming technology, so it can afford high precision and low temperature-drift coefficient of the output voltage.

HMXX1C is available in SOT-89-3, SOT-23-3 and SOT-23-5 packages that is PB free. And in 5-pin packages, such as SOT-23-5, the device can be switched on or off easily by CE pin to minimize the standby supply current.

HMXX1C is compatible to XC6382, XC6371, RT9261B, HT77XX, BL8530, AIC1642.

Features:

* Deliver 500mA at 5.0V output voltage with 4.0V input voltage.

* Low start up voltage, 0.8V.

* Output voltage can be adjusted from 2.2V to 6.0V.

* Output voltage accuracy: -2%.

* Low temperature-drift coefficient of the output voltage: -100ppm/C.

* Only three external components are necessary: An inductor, a schottky diode and output filter capacitor.

* Low quiescent current drawn from power source < 10uA.

Applications:

* Power source for PDA, DSC, MP3 player, electronic toy, and wireless mouse.

* Power source for s single or dual cell battery powered equipments.

* Power source for LED.