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| 型号： | LX1736CLD-TR |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.1 A SWITCHING REGULATOR, 1450 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 3 X 3 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, PLASTIC, MO-229, MLP-6 |
| 文件页数： | 2/7页 |
| 文件大小： | 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 2
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
ABSOLUTE MAXIMUM RATINGS
Input Voltage (VCC or VPWR) ..................................................................... -0.3V to 7.0V
SW to GND........................................................................................ -0.3V to (VIN + 0.3V)
VFB to GND................................................................................................... -0.3V to +2V
SW Peak Current .....................................................................................Internally Limited
Junction Operating Temperature Range........................................................0°C to +125°C
Storage Temperature Range, TA..................................................................-65°C to 150°C
Maximum Junction Temperature ............................................................................... 150°C
Package Peak Temp. for Solder Reflow (40 seconds max. 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
.
THERMAL DATA
LD Plastic MLP 3x3mm MO-229, 6-Pin
THERMAL RESISTANCE
-JUNCTION TO CASE,
θ
JC
4
°C/W
THERMAL RESISTANCE
-JUNCTION TO AMBIENT,
θ
JA
25 to 50
°C/W
Junction Temperature Calculation: TJ = TA + (PD x θJA).
The
θ
JA numbers are guidelines for the thermal performance of the device/pc-board system. All of
the above assume no ambient airflow.
PACKAGE PIN OU T
FB
GND
SW
VPWR
VCC
NC
1
2
3
4
5
6
LD PACKAGE
(Top View)
RoHS / Pb-free 100% matte Tin Pin Finish
FUNCTIO N AL PIN DESCRIPTION
Name Pin #
Description
VCC
5
Unregulated supply voltage input, ranging from +4V to 6.0V for internal analog control circuitry.
VPWR
4
Unregulated supply voltage input (+4V to 6.0V), high current path, supplies PMOSFET Drain of PWM switch.
FB
1
Feedback input for setting programming output voltage.
GND
2
Circuit ground for IC analog circuitry and high frequency gate drive bias, exposed pad area on bottom of
package may be connected to ground or left floating.
SW
3
Inductor and commutation diode connection point. Connects to internal PMOSFET Source of PWM Switch
output.
RECOMM ENDED OPERATING CONDITIONS
LX1736
Parameter
Symbol
Min
Typ
Max
Unit
Input Operating Voltage Range
VIN
4.5
5.5
V
Continuous Output Current Range
IOUT
0
0.9
A
Output Voltage Range
VOUT
0.8
80% of VIN V
Operating Junction Temperature
TJ
0
125
°C
DD
EE
VV
IICC
EE
DD
AA
TT
AA
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