FEATURES
High Voltage, 1.2 MHz/600 kHz, 800 mA, Low Quiescent Current Buck Regulator ADP2370/ADP2371 TYPICAL APPLICATION CIRCUIT VIN = 6V CIN 10µF POWER GOOD APPLICATIONS
Portable and battery-powered equipment Automatic meter readers (WSN) Point of sales and transaction processing instruments Medical instruments Medium format display tablets and pads Figure 1. GENERAL DESCRIPTION
The buck regulator uses a proprietary high speed current mode, constant frequency PWM control scheme for excellent stability and transient response. The need for an external rectifier is eliminated by using a high efficiency synchronous rectifier architecture. To ensure the longest battery life in portable applications, the ADP2370/ADP2371 employ a power saving variable frequency mode that reduces the switching frequency under light load conditions. The ADP2370/ADP2371 operate from input voltages of 3.2 V to 15 V allowing the use of multiple alkaline/NiMH, lithium cells, or other standard power sources. The ADP2370/ADP2371 offer multiple options for setting the operational frequency.
STMicroelectronics
