Linear Technology Corporation announces the "H-Grade" version of the LT1936. The LT1936 is a 36V, current mode PWM step-down DC/DC converter with an internal 1.9A power switch, packaged in a tiny 8-lead thermally enhanced MSOP package. The "H" Grade version operates up to a junction temperature of 150°C, compared to the "E" and "I" Grade versions' 125°C maximum junction temperature. The "H Grade" parts are both tested and guaranteed to the maximum junction temperature of 150°C. They are ideal for automotive and industrial applications which are subjected to high ambient temperatures.

The LT1936's wide input range of 3.6V to 36V makes the LT1936 suitable for regulating power from a wide variety of sources, including unregulated wall transformers, 24V industrial supplies and automotive batteries. For automotive applications, the LT1936 can easily operate with sub 4V inputs, necessary for automotive "cold crank" requirements. Its 500kHz operating frequency allows the use of tiny, low cost inductors and ceramic capacitors, resulting in low, predictable output ripple.

The LT1936HMS8E is available from stock in a thermally enhanced MSOP-10 package. Pricing starts at $3.67 each for 1,000-piece quantities.