KF33BD-TR STMicroelectronics

KFXX Very low drop voltage regulators with inhibit Datasheet - production data Description The KF series are very low drop regulators available in SO-8 and DPAK packages and in a wide range of output voltages. The very low dropout voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and especially in battery powered systems. DPAK SO-8 A shutdown logic control function is available (pin 5, TTL compatible). This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 F capacitor for stability allowing space and cost Features saving. Very low dropout voltage (0.4 V) Very low quiescent current (typ. 50 A in OFF mode, 500 A in ON mode) Output current up to 500 mA Logic-controlled electronic shutdown Output voltages of 2.5 3.3 5 8 V Internal current and thermal limit Only 2.2 F for stability Available in 2 % accuracy at 25 C Supply voltage rejection: 70 db (typ.) Temperature range: - 40 to 125 C Table 1. Device summary Order codes Output voltages SO-8 (tape and reel) DPAK (tape and reel) KF25BD-TR KF25BDT-TR 2.5 V KF33BD-TR KF33BDT-TR 3.3 V KF50BD-TR KF50BDT-TR 5 V KF80BDT-TR 8 V February 2018 DocID4337 Rev 14 1/21 This is information on a product in full production. www.st.comContents KFXX Contents 1 Diagram . 3 2 Pin configuration . 4 3 Maximum ratings 5 4 Electrical characteristics . 6 5 Typical performance characteristics . 10 6 Package mechanical data 11 7 Packaging mechanical data 17 8 Revision history . 20 2/21 DocID4337 Rev 14