CS51033

Features:

·1A Totem Pole Output Driver
·High Speed Oscillator (700kHz max)
·No Stability Compensation Required
·Lossless Short Circuit Protection
·2% Precision Reference
·Programmable Soft Start


Pinout




Specifications

Power Supply Voltage, V_CC...........................................................5V
Driver Supply Voltage, V_C............................................................20V
Driver Output Voltage, V_GATE .....................................................20V
COSC, CS, VFB (Logic Pins) ..........................................................5V
Peak Output Current..................................................................1.0A
Steady State Output Current .................................................200mA
Operating Junction Temperature, T_J.......................................150°C
Storage Temperature Range, T_S..................................-65 to 150°C
ESD (Human Body Model).............................................................2kV
Lead Temperature Soldering ave Solder (through hole styles only) ...10 sec. max, 260°C peak
Reflow (SMD styles only) .............................................60 sec. max above 183°C, 230°C peak 


Description

The CS51033 is a switching controller or use in DC-DC converters. t can be used in the buck topology ith a minimum number of external omponents. The CS51033 consists
of a 1.0A power driver for controlling he gate of a discrete Pchannel ransistor, fixed frequency scillator, short circuit protection imer, programmable soft start, precision eference, fast output voltage monitoring comparator, and output stage driver logic with latch. The high frequency oscillator allows the use of small inductors and output capacitors, minimizing PC board area and systems cost. The programmable soft start reduces current surges at start up. The short circuit protection timer significantly reduces the PFET duty cycle to approximately 1/30 of its normal cycle during short circuit conditions.

The CS51033 is available in 8L SO and 8L PDIP plastic packages.