The XC9135/XC9136 series are synchronous step-up DC/DC converters with a 0.2Ω(TYP.) N-channel driver transistor and a 0.2 Ω(TYP.) synchronous P-channel switching transistor built-in. A highly efficient and stable current can be supplied up to 1.0A by reducing ON resistance of the built-in transistors. The series are able to start operation under the condition which has 0.9V input voltage to generate 3.3V output voltage with a 33 Ωload resistor, suitable for mobile equipment using only one Alkaline battery or one Nickel metal hydride battery. During the operation of a shutdown, the load disconnection function enables to cut the current conduction path from the input to the output. The output voltage is selectable in 0.1V increments within 1.8~5.0V (±2.0% accuracy). The UVLO function of the XC9135 series is capable to reduce leaking potassium hydroxide by stopping IC operation while battery voltage is declining. The release voltages of UVLO are 0.85V (±6.0% accuracy) and 1.6V (±3.0% accuracy), and selectable voltages range of 0.9V~3.0V.
The XC9135/XC9136 series are synchronous step‑up DC/DC converters with built‑in 0.2 Ω N‑channel driver and 0.2 Ω P‑channel switching transistors. They can start operation with as low as 0.9 V input and deliver a stable 3.3 V output, making them suitable for mobile devices powered by a single alkaline or Ni‑MH cell.
Key features include selectable output voltage from 1.8 V to 5.0 V in 0.1 V steps, UVLO protection, load‑disconnection, soft‑start, auto‑discharge, and a range of protection circuits. The device is RoHS‑compliant, packaged in a USP‑10B lead‑frame, and operates from –40 °C to +85 °C.
| Input Voltage Range | 0.65 V – 5.5 V |
|---|---|
| Output Voltage Range | 1.8 V – 5.0 V (0.1 V increments) |
| Maximum Output Current | 500 mA @ VOUT=3.3 V, VIN=1.8 V (typ.) |
| Oscillation Frequency | 1.2 MHz (±15 %) |
| Operating Ambient Temperature | -40 °C to +85 °C |
| Package | USP-10B |
The converter operates from 0.65 V up to 5.5 V.
Output voltage can be set between 1.8 V and 5.0 V in 0.1 V steps.
The device can deliver up to 500 mA at a 3.3 V output.