參數(shù)資料
型號(hào): LX1672-05CPWTR
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類(lèi): 穩(wěn)壓器
英文描述: 1 A DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, PDSO28
封裝: PLASTIC, TSSOP-28
文件頁(yè)數(shù): 12/20頁(yè)
文件大小: 358K
代理商: LX1672-05CPWTR
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright
2000
Rev. 0.3m, 2005-04-12
WWW
.Microse
m
i
.CO
M
LX1672
Multiple Output LoadSHARE PWM
PRELIMINARY DATA SHEET
TM
ABSOLUTE MAXI MUM RATI NGS
Supply Voltage (VCC) DC.................................................................-0.3V to 5.5V
Supply Voltage (VCC) Transient ......................................................-0.3V to 6.0V
Driver Supply Voltage (VC
x, V
CCL) DC ............................................-0.3V to 16V
Driver Supply Voltage (VC
x, V
CCL) Transient ..................................-0.3V to 18V
Current Sense Inputs (VSX, CSX) ....................................................... -0.3V to 12V
Error Amplifier Inputs (FBX, RF2)....................................................-0.3V to 5.5V
Input Voltage (SS/SHDN) ..................................................................-0.3V to5.5V
Output Drive Peak Current Source (HOx, LOx)....................................1A (500ns)
Output Drive Peak Current Sink (HOx, LOx) .......................................1A (500ns)
Operating Junction Temperature.................................................................. 150°C
Storage Temperature Range...........................................................-65°C to 150°C
RoHS Peak Package Solder Reflow Temperature
(40 second maximum exposure) ..................................................... 260°C (+0, -5)
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.
The limitation on transient time is thermal and is due to zener diodes on the
supply pins, brief application of maximum voltages will increase current into that
pin and increase package power dissipation..
x= Denote Phases 1 & 2
TH ERM A L DATA
PW
Plastic TSSOP 28-Pin
THERMAL RESISTANCE
-JUNCTION TO AMBIENT,
θJA
85
°C/W
LQ
Plastic MLPQ 38-Pin
THERMAL RESISTANCE
-JUNCTION TO AMBIENT,
θ
JA
35°C/W
Junction Temperature Calculation: TJ = TA + (PD x θJC).
The θJA numbers are guidelines for the thermal performance of the device/pc-board system.
All of the above assume no ambient airflow.
PACKAGE PIN OUT
HO2
2
3
4
5
6
7
8
9
10
11
12
13
14
1
27
26
25
24
23
22
21
20
19
18
17
16
15
28
LO2
PG2
LDGD
LDFB
LDDIS
DGND
AGND
DIS2
SS2
RF2
FB2
EO2
CS2
VC2
VC1
HO1
LO1
PG1
VCCL
VCC
VS1
CS1
EO1
FB1
SS1
DIS1
VS2
PW PACKAGE
(Top View)
HO2
VC2
LDGD
LDFB
LDDIS
DGND
AGND
SS2
RF2
FB2
EO2
N.C.
DIS1
DIS2
VCC
VCCL
N.C.
N.C
.
VC
1
HO
1
LO
1
PG
1
LO
2
CS
2
VS
2
SS
1
FB1
EO
1
CS1
VS
1
RSVD
N.C.
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Connect Bottom to
Power GND
PWGD
N.C.
(N.C. – No Internal Connection
N/U – Not Used)
RoHS / Pb-free 100% Matte Tin Lead Finish
PP
AA
CC
KK
AA
GG
EE
DD
AA
TT
AA
相關(guān)PDF資料
PDF描述
LX1672-03CLQTR 1 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQCC38
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