Linear Technology’s LT3641 dual-channel, current-mode step-down switching regulator now comes in an H-grade version. It uses a dual-channel design with a 55-Vin transient capability. Other features include a 1.3A output current, 2.5V to 5.5V input range, synchronizable, adjustable 350-kHz to 2.5-MHz switching frequency, and a maximum junction temperatures to +150°C. Available in a 28-lead TSSOP-28, price starts at $4.43 each/1,000. LINEAR TECHNOLOGY CORP., Milpitas, CA. (800) 454-6327.