PWM, PWM/PFM Switching Step-Up & Down DC/DC Converters

The XC9302 series are step-up/down DC/DC converter controller ICs with fast, low ON resistance drivers built-in. A versatile, large output current, step-up/down DC/DC converter can be realized using only 4 basic external components - transistors, coils, diodes and capacitors.

Output voltage is selectable in 0.1V steps within a 2.4V ~ 6.0V (±2.5%) range and switching frequency is set at 180kHz or 300kHz.

The XC9302 series switches from PWM to PFM control during light loads and the series offers high efficiencies from light loads through to large output currents.

Soft-start time is internally set to 10 ms which offers protection against rush currents when the power is switched on and also against voltage overshoot.

During shutdown (CE pin = L), consumption current can be reduced to as little as 0.5μA or less.

Feature

Input Voltage Range2.0V~10V
Output Voltage Range2.4V~6.0V(±2.5%),(0.1V increments)
Oscillation Frequency180KHz,300kHz(±15%)
Output CurrentMore than 50mA(VIN=2.4V,VOUT=3.3V)
High Efficiency81%(TYP.)@5.0V, 78%(TYP.)@3.3V
Stand-by CurrentISTB=0.5μA(MAX.)
Maximum Duty Cycle85%(TYP.)
FunctionsOutput voltage internally set up

Typical Application Circuit

Quality Reports

Technical Document

Packages

Package Number of Pins Pcs/Reel Package Size(mm)
SOT-25 5 3,000 2.8 x 2.9 x 1.3

XC9302 Series Part Numbers

Part number Sample Output Voltage Oscillation Frequency Packages EDA Online Store
XC9302A202MR-G 2.0V 180kHz SOT-25
XC9302A203MR-G 2.0V 300kHz SOT-25
XC9302A212MR-G 2.1V 180kHz SOT-25
XC9302A213MR-G 2.1V 300kHz SOT-25
XC9302A222MR-G 2.2V 180kHz SOT-25
XC9302A223MR-G 2.2V 300kHz SOT-25
XC9302A232MR-G 2.3V 180kHz SOT-25
XC9302A233MR-G 2.3V 300kHz SOT-25
XC9302A242MR-G 2.4V 180kHz SOT-25
XC9302A243MR-G 2.4V 300kHz SOT-25
XC9302A252MR-G 2.5V 180kHz SOT-25
XC9302A253MR-G 2.5V 300kHz SOT-25
XC9302A262MR-G 2.6V 180kHz SOT-25
XC9302A263MR-G 2.6V 300kHz SOT-25
XC9302A272MR-G 2.7V 180kHz SOT-25
XC9302A273MR-G 2.7V 300kHz SOT-25
XC9302A282MR-G 2.8V 180kHz SOT-25
XC9302A283MR-G 2.8V 300kHz SOT-25
XC9302A292MR-G 2.9V 180kHz SOT-25
XC9302A293MR-G 2.9V 300kHz SOT-25
XC9302A302MR-G 3.0V 180kHz SOT-25
XC9302A303MR-G 3.0V 300kHz SOT-25
XC9302A312MR-G 3.1V 180kHz SOT-25
XC9302A313MR-G 3.1V 300kHz SOT-25
XC9302A322MR-G 3.2V 180kHz SOT-25
XC9302A323MR-G 3.2V 300kHz SOT-25
XC9302A332MR-G 3.3V 180kHz SOT-25
XC9302A333MR-G 3.3V 300kHz SOT-25
XC9302A342MR-G 3.4V 180kHz SOT-25
XC9302A343MR-G 3.4V 300kHz SOT-25
XC9302A352MR-G 3.5V 180kHz SOT-25
XC9302A353MR-G 3.5V 300kHz SOT-25
XC9302A362MR-G 3.6V 180kHz SOT-25
XC9302A363MR-G 3.6V 300kHz SOT-25
XC9302A372MR-G 3.7V 180kHz SOT-25
XC9302A373MR-G 3.7V 300kHz SOT-25
XC9302A382MR-G 3.8V 180kHz SOT-25
XC9302A383MR-G 3.8V 300kHz SOT-25
XC9302A392MR-G 3.9V 180kHz SOT-25
XC9302A393MR-G 3.9V 300kHz SOT-25
XC9302A402MR-G 4.0V 180kHz SOT-25
XC9302A403MR-G 4.0V 300kHz SOT-25
XC9302A412MR-G 4.1V 180kHz SOT-25
XC9302A413MR-G 4.1V 300kHz SOT-25
XC9302A422MR-G 4.2V 180kHz SOT-25
XC9302A423MR-G 4.2V 300kHz SOT-25
XC9302A432MR-G 4.3V 180kHz SOT-25
XC9302A433MR-G 4.3V 300kHz SOT-25
XC9302A442MR-G 4.4V 180kHz SOT-25
XC9302A443MR-G 4.4V 300kHz SOT-25
XC9302A452MR-G 4.5V 180kHz SOT-25
XC9302A453MR-G 4.5V 300kHz SOT-25
XC9302A462MR-G 4.6V 180kHz SOT-25
XC9302A463MR-G 4.6V 300kHz SOT-25
XC9302A472MR-G 4.7V 180kHz SOT-25
XC9302A473MR-G 4.7V 300kHz SOT-25
XC9302A482MR-G 4.8V 180kHz SOT-25
XC9302A483MR-G 4.8V 300kHz SOT-25
XC9302A492MR-G 4.9V 180kHz SOT-25
XC9302A493MR-G 4.9V 300kHz SOT-25
XC9302A502MR-G 5.0V 180kHz SOT-25
XC9302A503MR-G 5.0V 300kHz SOT-25
XC9302A512MR-G 5.1V 180kHz SOT-25
XC9302A513MR-G 5.1V 300kHz SOT-25
XC9302A522MR-G 5.2V 180kHz SOT-25
XC9302A523MR-G 5.2V 300kHz SOT-25
XC9302A532MR-G 5.3V 180kHz SOT-25
XC9302A533MR-G 5.3V 300kHz SOT-25
XC9302A542MR-G 5.4V 180kHz SOT-25
XC9302A543MR-G 5.4V 300kHz SOT-25
XC9302A552MR-G 5.5V 180kHz SOT-25
XC9302A553MR-G 5.5V 300kHz SOT-25
XC9302A562MR-G 5.6V 180kHz SOT-25
XC9302A563MR-G 5.6V 300kHz SOT-25
XC9302A572MR-G 5.7V 180kHz SOT-25
XC9302A573MR-G 5.7V 300kHz SOT-25
XC9302A582MR-G 5.8V 180kHz SOT-25
XC9302A583MR-G 5.8V 300kHz SOT-25
XC9302A592MR-G 5.9V 180kHz SOT-25
XC9302A593MR-G 5.9V 300kHz SOT-25
XC9302A602MR-G 6.0V 180kHz SOT-25
XC9302A603MR-G 6.0V 300kHz SOT-25

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