AMC8878 Datasheet, PDF (2/9 Pages) List of Unclassifed Manufacturers – LOW NOISE 150mA LOW DROPOUT REGULATOR

AMC DOC. #: AMC8878_D (LF)
March 2004
TYPICAL APPLICATION
AMC8878/8879
LOW NOISE 150mA
LOW DROPOUT REGULATOR
V_IN
2.5V to 6V _CIN
1µF
ON
OFF
AMC8878
AMC8879
C_OUT
1µF
V_OUT
C_BP
0.01µF
ABSOLUTE MAXIMUM RATINGS (Note)
Input Voltage, V_IN
Operating Junction Temperature, T_J
12V
150 ^OC
Storage Temperature Range
-65 ^OC to +150 ^OC
Lead Temperature (soldering, 10 seconds)
+260 ^OC
Power Dissipation, P_D @ T_A = 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
Junction Temperature Calculation: T_J = T_A + (P_D × 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.
220 ^OC /W
Maximum Power Calculation:
P_D(MAX)=
T_J(MAX) – T_A(MAX)
θ_JA
T_J(^OC): Maximum recommended junction temperature
T_A(^OC): Ambient temperature of the application
θ_JA(^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 :
P_D(MAX) = [(V_IN(MAX) - V_OUT(NOM))] × I_OUT(NOM) + V_IN(MAX) × I_Q
Where: V_OUT(NOM) = the nominal output voltage
I_OUT(NOM) = the nominal output current, and
I_Q = the quiescent current the regulator consumes at I_OUT(MAX)
V_IN(MAX) = the maximum input voltage
Then θ_JA = (+150 ^OC – T_A)/P_D
Copyright  2002, ADD Microtech Corp.
2
www.addmtek.com