Advanced Analog Technology, Inc.
PIN DESCRIPTIONS
PIN
NAME
FUNCTION
Compensation Pin for Error Amplifier
1
EO
R1
R2
Feedback Pin with a Typical Reference Voltage of 1.24V, VOUT = IN(1+
)
2
IN
3
4
5
6
SHDN
GND
SW
Shutdown Control Pin. The Device Will Turn Off When SHDN is Low
Ground
Switch Pin
VDD
Power Supply Pin
Frequency Select Pin. Switch Oscillator Frequency to 640kHz When FREQ is
Low, and 1.3MHz When FREQ is High
7
FREQ
8
SS
Soft-Start Control Pin. No Soft-Start When the Pin is Left Open
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VALUE
UNIT
SW to GND
− 0.3 to +18
V
IN, SHDN, VDD , FREQ to
GND
SS, EO to GND
− 0.3to +6
V
V
A
− 0.3V to ( VDD + 0.3V)
RMS SW Pin Current
1.2
ISW
Continuous Power Dissipation
(TC = + 70 ℃)
8-Pin MSOP (De-Rate
330
Pd
mW
4.1mW /℃ above +70℃)
TC
− 30 to +85
Operation Temperature Range
Storage Temperature Range
℃
℃
Tstorage
− 45 to +125
TJ
+150
+300
℃
℃
Junction Temperature Range
Lead Temperature
TL
(Soldering for 10 seconds)
Note:
1. Absolute Maximum Ratings are threshold limit values that must not be exceeded.
2. Operation above these absolute maximum ratings may cause degradation or permanent damage to the device.
3. These are stress ratings only and do not necessarily imply functional operation below these limits.
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Page 2 of 18
V5.0
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
