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參數(shù)資料
| 型號： | LX1736CLD-TR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.1 A SWITCHING REGULATOR, 1450 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 3 X 3 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, PLASTIC, MO-229, MLP-6 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 220K |
| 代理商： | LX1736CLD-TR |
LX1736
PRODUCTION DATA SHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
WWW
.Microse
m
i
.CO
M
5V 1.25A 1.0MHz PWM/PFM STEP DOWN REGULATOR
TM
Copyright
2007
Rev. 1.1., 11/25/2008
ELECTRI CAL CHARACTERISTICS
Specifications are guaranteed over the junction temperature range of: 0°C < T < 125°C for VIN = 4.5V to 5.5V (unless noted otherwise),
not all of these parameters are production tested but are assured by design, characterization and correlation with statistical process
controls.. Typical values are at TA=23°C.
LX1736
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Feedback Threshold
VFBT
4.0V < VIN < 6.0V
772
800
828
mV
Feedback Input Current
IFB-IN
VFB = VFBT + 10mV
75
nA
PWM Frequency
FOP-PWM PWM Mode
800
1450
Khz
PFM Mode Transition
IO-PFM
PFM mode
80
mA
Minimum DC Output Current
IOUT
0
mA
Maximum DC Output Current
IOUTMAX
TJ ≤ 70C
1.25 or
0.7/duty
cycle
whichever
is less
A
Maximum Duty Cycle
DMAX
ISW = IOUT max
80
%
Closed Loop Load Regulation
VOUT Load
REG
10mA<IOUT<IOUT MAX
-0.5
0.5
%VOUT
VIN=5V, VOUT≥1.1V, IOUT= 10mA
55
%
Efficiency
η
VIN=5V, VOUT>1.1V, IOUT≥ 150mA
70
%
Quiescent Current
IQ
VFB = VFBT + 10mV
600
900
μA
P-Channel Switch ON
Resistance
RDS(ON)
ISW = 0.9A
0.375
Peak Current at Switch Pin (Not DC
Current)
1.1
P-Channel Switch Current Limit
ISW CL
TJ ≤ 70C
1.4
A
P-Channel Switch Leakage
ISW LKG
VFB = VFBT + 10mV
5
μA
Soft Start, VOUT Slew Rate
VO-SR
Initial Power On or After a Short
Circuit,
COUT = 20F
21
50
V/ms
Thermal Shutdown
TSD
(Silicon Temperature)
135
150
°C
DC Average In-Rush Current at
VCC and VPWR (summed)
IINRUSH
VIN ramping from 0V to 5V having a
slew rate of 0.1V/S min to 0.5V/uS max
and COUT = 20F
550
mA
Output Voltage Overshoot
(From either removal of a short
circuit condition from VOUT or
applied power during start up)
VO OS
Applied power VIN ramp rate of 0.1V/S
min to 0.5V/uS max
5
%
Output Voltage Response to
Dynamic Load Change
VO OS
Output load current change from
100ma to 700ma or 700ma to 100ma,
transition time <100ns
-5
5
%
Circuit Output Capacitance
COUT
Closed Loop stability
20
μF
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
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