ROHM Offers New Lq Current Technology For Linear And Switching Regulators

While the supplied voltage increases due to the greater demand for performance and sophistication, especially power consumption in stand-by mode has proofed to be problematic. In response to this, ROHM has developed new compact, high precision, low dark current regulators in two different versions.

The BD7xxLx series in a HTSOP-J8 package is a family of low quiescent current linear regulators featuring 45V absolute maximum voltage, an output voltage accuracy of ±2%, 200mA or 500mA output current and 6.5μA (Typ.) current consumption. Low saturation voltage is achieved by using a PMOS output transistor and ceramic capacitors can be used for compensation of the output capacitor phase.

The BD9901x series in a HTSSOP-B24 package offers low Iq DCDC regulators for a maximum input voltage of 42V, 2A output current and a quiescent current consumption of typ. 22 μA. Integrated MOSFETs serve as synchronous rectifier and the switching frequency is scaled from 200k to 500kHz. In addition, the line-up features current mode control.

Key Features

Low IQ LDO: BD7xxLx Series

•HTSOP-J8 package (4.9 x 6.0 x 1.0mm3)
•Input: 3.0 to 45V
•Output: 3.3V or 5.0V - 200mA or 500mA
•Quiescent current: typ. 6.5µA
•Low saturation voltage by using PMOS output transistor
•Supporting low ESR ceramic capacitor
•AEC-Q100 qualified

Low IQ DCDC: BD9901x Series

•HTSSOP-B24 package (7.8 x 7.6 x 1.0mm3)
•Input: 3.6 to 42V
•Output: 3.3V or 5.0V - 2A
•Quiescent current: typ. 22µA
•Synchronous rectifier: integrated MOSFETs
•Switching frequency: 200k to 500kHz
•AEC-Q100 qualified

Availability

The LDO series is already available in OEM quantities. The Low Iq switching regulators are available in sample quantities, OEM quantities will be available in Febuary 2013.