Datasheet

© 2011 Fairchild Semiconductor www.fairchildsemi.com
FAB3103 • Rev. 1.0.2 3
FAB3103 — 2.3 Watt Class-D Audio Amplifier with Integrated Boost Regulator and Automatic Gain Control
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol Parameter Min. Max. Unit
V
BATT
Voltage on VBATT Pin -0.3 6.0 V
V
OUT
Voltage on OUT-, OUT+ Pins -0.3 V
BSTOUT
+ 0.3 V
V
IN
Voltage on IN+, IN-, SW, EN, AGCT Pins -0.3 V
BATT
+ 0.3 V
V
INDIFF
Differential Voltage Across IN+, IN- Pins While Enabled -1.5 1.5 V
rms
P
D
Power Dissipation Internally Limited
Dissipation Ratings
Symbol Parameter Min. Typ. Max. Unit
T
J
Junction Temperature 150 °C
T
STG
Storage Temperature Range -65 150 °C
T
L
Lead Temperature (Soldering, 10s) 300 °C

JA
Thermal Resistance, JEDEC Standard, Multilayer Test
Boards, Still Air
77 °C/W
Electrostatic Discharge Protection
Symbol Parameter Condition Level Unit
ESD
Human Body Model (HBM) EIA/JESD22-A114 ±3 KV
Charged Device Model (CDM)
According to "EIA/JESD22-C101 Level III"
Compatible with "IEC61340-3-3 Level C4" or
"ESD-STM5.3.1-1999 Level C4"
±1 KV
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol Parameter Min. Typ. Max. Unit
T
A
Operating Temperature Range -40 85 °C
V
BATT
VBATT Supply Voltage Range 2.5 5.2 V
L
SW
Inductor (at Peak Inductor Current: 1.5A) 1.4
(1)
2.2 µH
C
VBATT
VBATT Capacitor 4.7
(1)
10.0 µF
C
PVDD
PVDD Capacitor 6.8
(1)
22.0 µF
C
AGCT
Capacitive Load on AGCT 10 pF
R
L
Load Resistance 6
(2)
8 
Notes:
1. Capacitors experience degradation over time and this is accelerated with increased temperature. It is therefore
recommended to use the stated typical values.
2. The FAB3103 is optimized to drive an 8 speaker impedance. The 8 speaker should remain at 6 over the
entire audio frequency range.