Harman Kardon AVR 171/230, Service Manual

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DB1510B
1A, 0.8V Dropout LDO Regulator
Datasheet AT1510BF-01
9. Nov. 2009
1 of 8
DESCRIPTION
The DB1510B low-dropout linear regulator
operates from input voltages as low as 2.2V and
are able to deliver up to 1A of continuous output
current
the DB1510B offers low dropout (typically
800mV at 1A) and low quiescent current (typically
400uA at 0.1A).
Fixed output voltages of the DB1510B are 1.0V,
1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.3V & 3.5V and the
output voltage is 2% accurate over load and line
variations. These regulators use small 2.2
μ F
MLCC input capacitor and 4.7 μ F MLCC output
capacitors to deliver 1A output current.
Soft-start reduces inrush current. The other
features include over current protection (OCP),
short-circuit protection (SCP), and thermal shut
down protection (TSD).
The DB1510B is packaged SOT-223, TO-252 &
8-pin thin dual flat no lead (TDFN) package that a
heat sink or an exposed pad for optimal power
dissipation.
FEATURES
„
Input Voltage Range: 2.2V to 6.0V
„
Quiescent Current: Typ. 400uA
„
Current limit : Min. 1.2A
„
Dropout Voltage: Typ. 800mV @ 1A
„
Compatible with MLCC Capacitors
„
Soft-Start Limits Inrush Current
„ Thermal Shutdown Protection
„ Over Current & Short Circuit Protection
APPLICATIONS
„ Servers
„ Storage
„ Networking
„ Optical Modules
„ Post Regulators
„ Notebooks
„ PDA
ORDERING INFORMATION
PART NUMBER PACKAGE
DB1510BT3TRxx
NOTE1)
TO-252 (I)
DB1510BT32TRxx
NOTE1)
TO-252 (II)
DB1510BNNTRxx
NOTE1)
SOT-223 (I)
DB1510BNN2TRxx
NOTE1)
SOT-223 (II)
DB1510BDLTRxx
NOTE1)
8-TDFN (3x3)
NOTE1) xx: Voltage Code, 1.0V (10), 1.2V (12), 1.5V (15),
1.8V (18), 2.5V (25), 2.8V (28), 3.3V (33) & 3.5V (35)
TYPICAL APPLICATION
3-Lead Application Circuit Power Supply Ripple Rejection
8-TDFN (3x3) Application Circuit
DONGBU HITEK CONFIDENTIAL
Harman Kardon AVR 171 Service Manual
Page 98 of 174