LX1676 Datasheet, PDF (2/16 Pages) Microsemi Corporation – Mobile AMD AthlonTM VRM Controller

INTEGRATED PRODUCTS
LX1676
Mobile AMD Athlon™ VRM Controller
PRELIMINARY DATA SHEET
ABSOLUTE MAXIMUM RATINGS
Supply Input Voltage (VCCL, VCC)................................................-0.3V to 6.0V
Battery Input Voltage (VIN) ..............................................................-0.3V to 36V
Current Limit Sense (ILIM1, ILIM3) ................................................-0.3V to 36V
Topside Driver Supply Input Voltage (VC1, VC2, VC3)........ -0.3 toVSx + 6.0V
Topside Driver Return Input Voltage (VS1, VS2)................................-5V to 36V
Differential Sense Input Voltage (FB+, FB-)....................................-0.3V to 6.0V
VID0 – VID4, Input Voltage ...............................................................-0.3V to 6V
High Side Driver Peak (<500ns) Current (HO1/2, I-MAX) ............................+1A
Low Side Driver Peak (<500ns) Sink Current (LO1/2, I-MIN)....................+1.5A
Operating Junction Temperature.................................................................. 150°C
Storage Temperature Range...........................................................-65°C to 150°C
Lead Temperature (Soldering 10 seconds) .................................................. 300°C
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to
Ground. Currents are positive into, negative out of specified terminal.
x denotes respective pin designator 1, 2, or 3
PACKAGE PIN OUT
FB-
DFOUT
EO1
EA1-
DACOUT
PWGD
GND
VIN
ROSC
ENA
VID4
VID3
1 ^{38 37 36 35 34 33 32} 31
2
30
3
29
4
28
5
27
6 Connect Bottom to 26
Power GND
7
25
8
24
9
23
10
22
11
21
12 _{13 14 15 16 17 18 19} 20
VS3
I-MAX
VC3
VC1
HO1
VS1
LO1
PGN
LO2
VCCL
I-MIN
PGN3
LQ PACKAGE
(Top View)
FB-
DFOUT
EO1
EA1-
DACOUT
PWGD
GND
VIN
ROSC
ENA
VID4
VID3
VID2
VID1
VID0
VS2
H02
VC2
VCC
1
38
19
20
PW PACKAGE
(Top View)
FB+
EO2
EA2-
LP2
LP1
ILIM1
ILIM3
VS3
I-MAX
VC3
VC1
HO1
VS1
LO1
PGN
LO2
VCCL
I-MIN
PGN3
RECOMMENDED OPERATING CONDITIONS
Parameter
`
IC Input Supply Voltage
Battery Input Voltage
Biphase Topside Driver Return Voltage
Transient Correction Phase Driver Return Voltage
Symbol
VCC
VIN
VS1, VS2
VS3
LX1676
Units
Min Typ Max
4.5
5.5 V
5.7
25.2 V
0
25.2 V
0
5.5 V
Copyright © 2000
Revision: 0.4b, 9/14/2004
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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