lx1675 Microsemi Corporation, lx1675 Datasheet - Page 5

• Manufacturer Part Number: lx1675
• Description: Multiple Output Loadshare?? Pwm Production Data Sheet
• Manufacturer: Microsemi Corporation

Copyright © 2004
Rev. 1.2a, 2006-02-16
For the LX1675ILQ the following specifications apply over the ambient temperature -40°C < TA < 85°C and for the LX1675CLQ 0°C <
T
Load, FS = 0 (f = 300KHz).
A
Note 1: X = Phase 1, 2, 3
Note 2: System Level Measurement; Closed Loop
INTERNAL 5V REGULATOR
Regulated Output
UVLO AND SOFT-START (SS)
Start-Up Threshold
(VCX, VCCL, VIN)
Hysteresis
SS Input Resistance
SS Shutdown Threshold
Hiccup Mode Duty Cycle
LINEAR REGULATOR CONTROLLER
Voltage Reference Tolerance
LDO Supply
Source Current
Sink Current
LDO Output Voltage Range
Regulator Disable Threshold
Line Regulation
Load Regulation
LOGIC INPUTS
THERMAL SHUTDOWN
Die Temperature
LDO Gate Drive
FS,SF
< 85°C except where otherwise noted and the following test conditions: V
TM
Parameter
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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 )
Symbol
IVSLR
VCCL
V
V
V
I
I
TSD
R
LDGD
LDGD
SHDN
OUT4
SSL
SS
Integrated Products Division
Internal + External Load: 0mA < I
Rising
C
V
VSLR = 12V
VOH, Output Source Current = 0.5mA
VOH, Output Source Current = 10mA
V
V
Note 2, 1V < V
I
Note 2
Threshold Logic High
Threshold Logic Low
Pulldown Resistance
Hiccup Mode Operation at Limit
VOUT4
SS
LDFB
LDGD
LDGD
Microsemi
= 0.1µF
®
= 0.8V, C
= 50mA
= 7.5V
= 0.4V
Test Conditions
LDO
OUT
– V
= 330µF
Multiple Output LoadSHARE™ PWM
OUT4
IN
< 10V,
& VSLR = 12V, V
P
VCCL
RODUCTION
< 50mA
CX
= 17V, HOX and LOX =3000pF
D
Min
3.75
7.35
4.5
0.8
0.8
-1
-1
ATA
LX1675
S
Typ
0.30
0.25
100
100
100
160
HEET
20
6
3
4
Max
4.38
5.25
5.5
9.0
10
1
1
2
LX1675
Units
mV
mA
mA
mA
mV
KΩ
KΩ
°C
%
%
%
%
V
V
V
V
V
V
V
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