Read Harman Kardon AVR 171 (serv.man3) Service Manual online
DB1514A
1.5A, Low Dropout Regulator with Power Good
Datasheet AT1514AF-00
16. Sep. 2010
1 of 10
DESCRIPTION
The DB1514A is a very low dropout voltage linear
regulator which can operate from the input
voltages as low as 2.5V and is capable of
delivering the continuous output load current up
to 1.5A.
regulator which can operate from the input
voltages as low as 2.5V and is capable of
delivering the continuous output load current up
to 1.5A.
It has a low dropout voltage (maximum 300mV at
1A), a very low quiescent current (typically 300uA
at 0.1A) and very high PSRR up to 86dB at 1A
load current.
1A), a very low quiescent current (typically 300uA
at 0.1A) and very high PSRR up to 86dB at 1A
load current.
The output voltage can be set from 0.5V to (VIN -
V
V
DRP
) with an external resistor divider and it has
±
2% accuracy through all temperature ranges
include the line as well as load variations.
It is allowed to use a small 4.7μF MLCC input and
output capacitor to deliver the current with the
stable operation.
output capacitor to deliver the current with the
stable operation.
An internal Soft-Start function reduces the inrush
current and the other features are include over
current protection (OCP), short-circuit protection
(SCP), and thermal shut down protection (TSD).
current and the other features are include over
current protection (OCP), short-circuit protection
(SCP), and thermal shut down protection (TSD).
The DB1514A is available in 8-SOP-EP package
with exposed pad for optimal power dissipation
and 8-TDFN(3mmx3mm).
with exposed pad for optimal power dissipation
and 8-TDFN(3mmx3mm).
FEATURES
Input Voltage Range: 2.5V to 6.0V
Low Quiescent Current: Typ. 300uA @
Current limit : Min. 1.8A
Adjustable Output from 0.5V
DB1514A: Typ 0.4V Dropout @ I
OUT
=1.5A
Max 0.28V Dropout @ I
OUT
=1A
Max 0.2V Dropout @ I
OUT
=0.5A
Compatible with MLCC Capacitors
Soft-Start Limits Inrush Current
Thermal Shutdown Protection
Over Current & Short Circuit Protection
APPLICATIONS
TV & STB application
Servers
Networking
Notebook
Optical
Modules
Post
Regulators
ORDERING INFORMATION
PART NUMBER
PACKAGE
DB1514AHETR 8-SOP-EP
DB1514ADLTR 8-TDFN(3x3)
DB1514ADLTR 8-TDFN(3x3)
TYPICAL APPLICATION
Harman Kardon
AVR 171 Service Manual
Page 96 of 174
Click on the first or last page to see other AVR 171 (serv.man3) service manuals if exist.