LD6938 Datasheet | NXP Semiconductors

description The LD6938 series consists of small-size dual Low Drop Out regulators (LDO). Each device delivers two times 300 m A with a typical voltage drop of 240 m V at full output load. The devices offer two separate fixed nominal output voltages (VO(nom)) in the range of 1.2 V to 3.3 V. The LDO has an integrated Soft start to control the inrush current during start-up. The output mode, when disabled, can be high-ohmic 3-state or auto discharge. Optionally a delayed start-up circuit is available for the second output. The devices are available in a 6-bump Wafer-Level Chip-Scale Package (WLCSP) with a height of 0.47 mm. 1.2 Features and benefits - High Power Supply Rejection Ratio (PSRR) - Low output noise - Low quiescent current - Extremely low standby current ( 0.1 A) - Soft start circuit to limit inrush current - Output current limiter with foldback circuit - Overtemperature protection - Delayed output circuit for second LDO (optional) - Auto discharge or high-ohmic mode for output when disabled - WLCSP6 with 0.4 mm pitch and package size of 1.2 mm  0.8 mm  0.47 mm 1.3 Applications - Smartphones - Mobile handsets - Digital still cameras - Tablet PCs - Mobile internet devices - Portable media players 1.4 Quick reference data - IO = 300 m A for each LDO - PSRR = 80 d B at 1 k Hz - RMS noise Vn(o)RMS = 70 V at 10 Hz to 100 k Hz - tstartup(reg)  200 s - VI = 1.7 V to 5.5 V - VO = 1.2 V to 3.3 V (fixed value) - Drop voltage Vdo = 240 m V at IO = 300 m A - Quiescent current Iq = 30 A for each LDO at IO = 0 m A NXP Semiconductors LD6938 series Dual low-dropout regulators, low noise, 300 m A 2. Pinning information 2.1 Pinning EDOO$ LQGH[DUHD /'&; (1 $ $ 287 - 1' % %...