AMC7637 ADDTEK [ADDtek Corp], AMC7637 Datasheet - Page 2

• Manufacturer Part Number: AMC7637
• Description: ULTRA LOW IQ 300mA LOW DROPOUT REGULATOR
• Manufacturer: ADDTEK [ADDtek Corp]

Copyright © 2007 ADDtek Corp.
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground.
Maximum Power Calculation:
P
D(MAX)
Thermal Resistance from Junction to Ambient, θ
Junction Temperature Calculation: T
The θ
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.
Input Voltage, V
Maximum Operating Junction Temperature, T
Storage Temperature Range
Lead Temperature (soldering, 10 seconds)
The maximum power dissipation for a single-output regulator is:
P
Currents are positive into, negative out of the specified terminal.
D(MAX)
= [(V
JA
θ
T
T
numbers are guidelines for the thermal performance of the device/pc-board system.
JA
Where:
A
J
(
(
(
=
O
IN(MAX)
O
O
C):
C):
C /W):
Then
T
J(MAX)
- V
Maximum recommended junction temperature
Ambient temperature of the application
V
I
I
V
θ
OUT(NOM)
Q
IN
JA
– T
OUT(NOM)
IN(MAX)
= the quiescent current the regulator consumes at I
OUT(NOM)
= (125
θ
Junction-to-Ambient temperature thermal resistance of the package, and other heat dissipating materials.
JA
A(MAX)
= the maximum input voltage
= the nominal output current, and
O
= the nominal output voltage
)] × I
C – T
OUT(NOM)
A
)/P
J
= T
D
ABSOLUTE MAXIMUM RATINGS
A
+ V
GND
+ (P
V
IN
IN(MAX)
D
× θ
JA
× I
).
Q
J
BLOCK DIAGRAM
THERMAL DATA
JA
2
Current
Limiter
OUT(MAX)
V
REF
(Note)
V
OUT
DD053_C -- JUNE 2007
8V
150
-65
260
AMC7637
°
°
°
C to 150
C
C
250
O
C /W
°
C