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AMC8878 Datasheet(PDF) 2 Page - ADDtek Corp

Part No. AMC8878
Description  LOW NOISE 150mA LOW DROPOUT REGULATOR
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Maker  ADDTEK [ADDtek Corp]
Homepage  http://www.addmtek.com
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AMC8878 Datasheet(HTML) 2 Page - ADDtek Corp

   
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AMC8878/8879
Copyright
© 2006 ADDtek Corp.
2
DD067_G -- JUNE 2006
TYPICAL APPLICATION
ABSOLUTE MAXIMUM RATINGS
(Note)
Input Voltage, VIN
12V
Operating Junction Temperature, TJ
150
OC
Storage Temperature Range
-65
OC to +150 OC
Lead Temperature (soldering, 10 seconds)
+260
OC
Power Dissipation, PD @ TA = 70
OC
150 mW
Note:
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into,
negative out of the specified terminal.
THERMAL DATA
DB PACKAGE:
Thermal Resistance from Junction to Ambient,
θ JA
220
OC /W
Junction Temperature Calculation: TJ = TA+ (PD × θ JA).
The
θ
JA numbers are guidelines for the thermal performance of the device/pc-board system.
Connect the ground pin to ground using a large pad or ground plane for better heat dissipation.
All of the above assume no ambient airflow.
Maximum Power Calculation:
TJ(MAX) – TA(MAX)
PD(MAX)=
θJA
TJ(
OC): Maximum recommended junction temperature
TA(
OC): Ambient temperature of the application
θJA(OC /W): Junction-to-junction temperature thermal resistance of the package, and other heat dissipating
materials.
The maximum power dissipation for a single-output regulator is :
PD(MAX) = [(VIN(MAX) - VOUT(NOM))] × IOUT(NOM) + VIN(MAX) × IQ
Where: VOUT(NOM) = the nominal output voltage
IOUT(NOM) = the nominal output current, and
IQ = the quiescent current the regulator consumes at IOUT(MAX)
VIN(MAX) = the maximum input voltage
Then
θ
JA = (+150
OC – TA)/PD
VOUT
COUT
1
µF
CIN
1
µF
VIN
2.5V to 6V
ON
OFF
AMC8878
AMC8879
CBP
0.01
µF


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