amc3100 ADDtek Corp, amc3100 Datasheet - Page 2

• Manufacturer Part Number: amc3100
• Description: 1.5mhz, 600ma Synchronous Step-down Converter
• Manufacturer: ADDtek Corp

Copyright © 2006 ADDtek Corp.
Thermal Resistance from Junction to Ambient, θ
Note :
Pin Number
1
2
3
4
5
Junction Temperature Calculation: T
P
The θ
All of the above assume no ambient airflow.
D
: Power Dissipation, T
JA
numbers are guidelines for the thermal performance of the device/PC-board system.
V
Pin Name
FB
RUN
GND
SW
V
/V
IN
OUT
A
: Ambient temperature, θ
Enable pin. Higher than 1.5V to turn on the device. Lower than 0.3V to turn it off.
The shutdown mode supply current less than <1µA supply current. This pin should
not be floating.
Ground
Power Switch Output. Connects to the drains of the internal P-CH and N-CH
MOSFET switches.
Supply Input Pin.
V
external resistor divider. The feedback threshold voltage is 0.6V.
V
divides the output voltage down for comparison to the internal reference voltage.
FB
OUT
J
(AMC3100): Feedback Input Pin. Connect V
= T
(AMC3100-X.X): Output Voltage Feedback Pin. An internal resistive divider
A
+ (P
PACKAGE THERMAL DATA
D
x θ
JA
: Thermal Resistance-Junction to Ambient
JA
PIN DESCRIPTION
JA
).
2
Pin Function
FB
to the center point of the
DD010_A -- JUNE 2006
250
AMC3100
O
C /W