LD6805 series Low-dropout regulators, high PSRR, 150 mA Rev. 4 7 June 2013 Product data sheet 1. Product profile 1.1 General description The LD6805 series is a small-size Low DropOut regulator (LDO) family with ultra high Power Supply Rejection Ratio (PSRR) of 75 dB. The voltage drop is 250 mV at 150 mA current rating. Operating voltages can range from 2.3 V to 5.5 V. Each device has a fixed output voltage V between 1.2 V and 3.6 V. O(nom) The LD6805K/xxH devices show a high-ohmic state (3-state) at the output pin when set to disabled mode. The LD6805K/xxP devices contain a pull-down switching transistor to provide a low-ohmic output state (auto discharge function) in disabled mode. The LD6805 series devices are available in a DFN1010C-4 (SOT1194-1) plastic package with a size of 1 1 0.55 mm. The devices are ideal for use in portable applications requiring component miniaturization. 1.2 Features and benefits High PSRR Overcurrent protection Auto discharge or high-ohmic output state when disabled Low quiescent current (0.1 A) in shutdown mode High-level ElectroStatic Discharge (ESD) protection (6 kV Human Body Model (HBM)) DFN1010C-4 (SOT1194-1) plastic package with a size of 1 1 0.55 mm Pb-free, Restriction of Hazardous Substances (RoHS) compliant, free of halogen and antimony (dark green compliant) 1.3 Applications Smartphones Tablet PCs Mobile handsets Mobile internet devices Digital still cameras Portable media players 1.4 Quick reference data I =150 mA V = 2.3 V to 5.5 V O I PSRR = 75 dB at 1 kHz V = 1.2 V to 3.6 V O RMS noise V =40 V Dropout voltage V = 250 mV n(o)RMS do at 10 Hz to 100 kHz at I = 150 mA O t =150 s Quiescent current I =35 A at 0 mA startup(reg) q SOT1194-1LD6805 series NXP Semiconductors Low-dropout regulators, high PSRR, 150 mA 2. Pinning information 2.1 Pinning LD6805 IN 4 3 EN OUT 1 2 GND 001aan948 Transparent top view Fig 1. Pin configuration for DFN1010C-4 (SOT1194-1) 2.2 Pin description Table 1. Pin description for DFN1010C-4 (SOT1194-1) Symbol Pin Description OUT 1 regulator output voltage GND 2 supply ground EN 3 device enable input active HIGH IN 4 regulator input voltage 1 i.c. TAB internal connected 1 The TAB is GND level (it is placed on the reverse side of the IC). It is recommended to connect the TAB to GND. Leaving it unconnected is also allowed but it may result in lower thermal performance. 3. Ordering information Table 2. Ordering information Type number Package Name Description Version LD6805 series DFN1010C-4 plastic thermal enhanced ultra thin small outline package SOT1194-1 no leads 4 terminals body 1 1 0.55 mm Further ordering options see Section 3.1 Ordering options. LD6805 SER All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 4 7 June 2013 2 of 22