XC9301 Series

General Description
Typical Application Circuit
Features
Packages
DATA SHEET
Quality Reports
FAQ
Part numbers
Similar to

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

The XC9301 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.

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.

Typical Application Circuit

Features

Input Voltage Range	2.0V~10V
Output Voltage Range	2.4V~6.0V(±2.5%),(0.1V increments)
Oscillation Frequency	180KHz,300kHz(±15%)
Output Current	More than 250mA (V_IN=2.4V,V_OUT=3.3V)
High Efficiency	81%(TYP.)@5.0V, 78%(TYP.)@3.3V
Stand-by Current	I_STB=0.5μA(MAX.)
Maximum Duty Cycle	85%(TYP.)
Functions	Output voltage internally set up

Packages

Package	SOT-25	Number of Pins	5
Pcs/Reel	3,000	Package Size(mm)	2.8 x 2.9 x 1.3
Package Dimensions [0.1MB] Taping Specifications [0.2MB] Package Power Dissipation [0.3MB] Perspective [0.1MB] Control Plan [0.1MB]

DATA SHEET

XC9301 Series：DATA SHEET [0.5MB]

Quality Reports

FAQ

What is the soft-start function?: The function to soften the rise to prevent the inrush current.
What is the standby current?: The current that flows through the IC in the standby mode. The standby mode means the state where the IC has been turned off by the CE function.
What does the FB product mean?: An IC for which any output voltage can be set by the reference voltage of the FB pins and the external dividing resistor. The output voltage is determined by the R_FB1 and R_FB2 values, using the following formula: V_OUT = Vref × (R_FB1 + R_FB2)/R_FB2