1. Product profile
1.1 General description
Small-size Low DropOut regulator (LDO) family with ultra high Power Supply Rejection
Ratio (PSRR) of 75 dB. The typical voltage drop is 250 mV at 150 mA current rating.
Operating voltages can range from 2.3 V to 5.5 V. The devices are available with fixed
nominal output voltages V
O(nom)
between 1.2 V and 3.6 V.
The LD6815TD/xxH devices show a high-ohmic state (3-state) at the output pin when set
to disabled mode. The LD6815TD/xxP devices contain a pull-down switching transistor to
provide a low-ohmic output state (auto discharge function) in disabled mode.
The LD6815 series devices are available in SOT753 (TSOP5) plastic package with a size
of 2.9 1.5 1.0 mm. All devices are manufactured in monolithic silicon technology.
1.2 Features and benefits
Overcurrent protection
Auto discharge or high-ohmic output stage available
Low quiescent current (0.1 A) in shutdown mode
High-level ElectroStatic Discharge (ESD) protection (6 kV Human Body Model (HBM))
Industry standard TSOP5 (SOT753) package
1.3 Applications
1.4 Quick reference data
LD6815 series
Low dropout regulators, high PSRR, 150 mA
Rev. 2 — 14 December 2012 Product data sheet
Smartphones Tablet PCs
Mobile handsets Mobile internet devices
Digital still cameras Portable media players
I
OUT
= 150 mA (max) V
IN
= 2.3 V to 5.5 V
PSRR = 75 dB at 1 kHz V
OUT
= 1.2 V to 3.6 V
RMS noise V
n(o)RMS
=40mV
at 10 Hz to 100 Hz
Dropout voltage V
do
= 250 mV
at I
OUT
=150mA
t
startup(reg)
=150s
