nx4108 Microsemi Corporation, nx4108 Datasheet - Page 2

• Manufacturer Part Number: nx4108
• Description: 1a Synchronous Buck Switcher With Fet On Board
• Manufacturer: Microsemi Corporation

ABSOLUTE MAXIMUM RATINGS
VIN to GND
SW,FB,EN to GND
ESD Susceptibility ............................................................. 1kV
Lead Temperature(Soldering,10sec.) .................................... 300
Storage Temperature Range ................................................ -55
Operating Junction Temperature Range ................................ -40
CAUTION: Stresses above those listed in "ABSOLUTE MAXIMUM RATINGS", may cause permanent damage to
the device. This is a stress only rating and operation of the device at these or any other conditions above those
indicated in the operational sections of this specification is not implied.
PACKAGE INFORMATION
ELECTRICAL SPECIFICATIONS
V
Rev. 1.7
12/30/09
Reference Voltage
Ref Voltage
Line Regualtion
Line Regulation
VIN UVLO
VIN Rising Threshold
VIN Falling Threshold
Supply Voltage(VIN)
VIN Input Voltage Range
Shutdown Current
Quiescent Current
Oscillator (Rt)
Frequency
Max Duty Cycle
Min ON time
Error Amplifiers
Feedback Input Bias Current
SS
Soft Start time
IN
=3.5V. Typical data refers to T
GND
PARAMETER
EN
SW
5-LEAD PLASTIC SOT23
..................................................................... -0.3V to 6V
1
2
3
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
JA
........................................................... -0.3V to VIN + 0.3V
o
C W
A
5
4
= 25
I
shutdown
SYM
FB
VIN
Tss
V
o
V
F
C. Unless otherwise specified.
I
FB
q
IN
S
Analog Mixed Signal Group
VIN=3V to 5V,VOUT=1.8V,
IOUT=10mA
EN=GND
No Load, switching
Microsemi
Test Condition
o
o
C to 150
o
C to 150
C
o
o
C
C
0.59
Min
800
2.3
2.8
78
1000
TYP
100
500
0.6
2.5
2.3
90
2
1
4
0.607
MAX
1200
0.05
NX4108
2.8
5.5
2.5
Units
kHz
mV
mA
uA
nS
uA
uS
%
V
V
V
V
2