lx1673 Microsemi Corporation, lx1673 Datasheet - Page 5

• Manufacturer Part Number: lx1673
• Description: High Frequency Pwm Regulator
• Manufacturer: Microsemi Corporation

Copyright © 2004
Rev 1.0, 3/18/2005
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0°C
otherwise noted and the following test conditions: V
Note 1:
Note 2:
Note 3:
UVLO AND SOFT-START (SS)
Start-Up Threshold (V
Start-Up Threshold (V
Hysteresis V
SS Input Resistance
SS Shutdown Threshold
Hiccup Mode Duty Cycle
Voltage Reference Tolerance
Source Current
Sink Current
DISABLE INPUTS
PWM Disable
LDO Disable
POWER GOOD
Drain to Source Voltage
Leakage
LINEAR REGULATOR CONTROLLER
TM
System Specification
Low duty cycle pulse testing techniques are used which maintain junction and case temperatures equal to the ambient temperature
Functionality over the –40 to 85 deg C operating temperature range is assured by design, characterization, and statistical process
control
Parameter
CC
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
C1
CC
, V
)
CCL,
E L E C T R I C A L C H A R A C T E R I S T I C S ( C O N T I N U E D )
LD
VCC
)
Symbol
LDDIS
V
I
I
DIS
R
HDRV
LDRV
SHDN
SS
CC
Integrated Products Division
C
V
V
V
Threshold
Internal Pull down Resistance
Threshold
Internal Pull down Resistance
I = 3mA
LDFB
OUT
OUT
SS
= 5V, V
= 0.1µF
®
Microsemi
= 10V
= 0.4V
= .8V, C
CCL
OUT
= 5V, V
Test Condition
= 330µF
C1
High Frequency PWM Regulator
=12V, LDVCC = 12V, TDRV = BDRV = 3000pF Load.
P
RODUCTION
D
ATA
Min
≤
4.0
30
T
S
A
HEET
≤
LX1673
Typ
4.25
0.05
70°C except where
100
4.0
0.1
0.1
0.2
2.5
0.4
20
10
80
2
1
Max
4.5
LX1673
Units
K
K
K
mA
mA
µA
%
%
V
V
V
V
V
V
V
Ω
Ω
Ω
Page 5