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AMC7637 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - ULTRA LOW IQ 300mA LOW DROPOUT REGULATOR - ADDtek

भाग संख्या AMC7637
समारोह ULTRA LOW IQ 300mA LOW DROPOUT REGULATOR
मैन्युफैक्चरर्स ADDtek 
लोगो ADDtek लोगो 
पूर्व दर्शन
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<?=AMC7637?> डेटा पत्रक पीडीएफ

AMC7637 pdf
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AMC7637
ABSOLUTE MAXIMUM RATINGS (Note)
Input Voltage, VIN
Maximum Operating Junction Temperature, TJ
Storage Temperature Range
Lead Temperature (soldering, 10 seconds)
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.
8V
150°C
-65°C to 150°C
260°C
THERMAL DATA
Thermal Resistance from Junction to Ambient, θ JA
Junction Temperature Calculation: TJ = TA+ (PD × θ JA).
The θJA 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.
250 OC /W
Maximum Power Calculation:
PD(MAX)=
TJ(MAX) – TA(MAX)
θJA
TJ(OC): Maximum recommended junction temperature
TA(OC): Ambient temperature of the application
θJA(OC /W): Junction-to-Ambient 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:
Then
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
θJA = (125 OC – TA)/PD
BLOCK DIAGRAM
VIN
Current
Limiter
VOUT
GND
VREF
Copyright © 2007 ADDtek Corp.
2
DD053_C -- JUNE 2007

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