EEWORLDEEWORLDEEWORLD

Part Number

Search

LX2750CLQ

Description
Switching Controller, Voltage-mode, 2000kHz Switching Freq-Max, PQCC16
CategoryPower/power management    The power supply circuit   
File Size389KB,11 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Parametric Compare View All

LX2750CLQ Online Shopping

Suppliers Part Number Price MOQ In stock  
LX2750CLQ - - View Buy Now

LX2750CLQ Overview

Switching Controller, Voltage-mode, 2000kHz Switching Freq-Max, PQCC16

LX2750CLQ Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerMicrochip
package instructionHVQCCN,
Reach Compliance Codecompli
Other featuresALSO HAS CONTROL TECHNIQUE OF PFM; ALSO OPERATES IN ADJUSTABLE DOWN TO 0.8V
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage16 V
Minimum input voltage10 V
Nominal input voltage12 V
JESD-30 codeS-PQCC-N16
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Nominal output voltage5 V
Package body materialPLASTIC/EPOXY
encapsulated codeHVQCCN
Package shapeSQUARE
Package formCHIP CARRIER
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height0.8 mm
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency2000 kHz
Temperature levelCOMMERCIAL
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature40
width3 mm
LX2750
SINGLE INPUT SUPPLY PWM CONTROLLER WITH LDO
CONTROLLER
PRODUCTION DATA SHEET
Pb Free Product
DESCRIPTION
The LX2750 controller IC is a compact synchronous
Buck controller IC with 16 lead MLPQ package de-
signed for step-down DC to DC converter applications.
Selectable feedforward voltage mode control or con-
stant on time control provides fast dynamic response.
Selectable diode emulation mode greatly improves the
light load efficiency. The LX2750 controller is optimized
to convert single supply 12V bus voltage to as low as
0.8V output voltage. An internal regulator converts bus
voltage to 5V, which provides voltage supply to inter-
nal logic and driver circuit. The LX2750 employs pro-
grammable loss-less current limiting by sensing the
Rdson of synchronous MOSFET followed by hiccup
feature. Feedback under voltage also triggers hiccup.
Internal UVLO keeps the controller off until the bus
supply voltage exceeds 9V where internal digital soft
starts get initiated to ramp up output. The LX2750 em-
ploys NMOS LDO controller. Other features include:
5V gate drive for HDRV signal, 12V gate drive for LDRV
signal, programmable frequency, adaptive deadband
control.
n
n
FEATURES
Single Input 12V Bus Voltage
Excellent Dynamic Response with Selectable
Feedforward Voltage Mode Control or Constant On
Time Control
Diode Emulation Mode Available
Programmable Switching Frequency Up to 2MHz
Internal Digital Soft Start Function
Programmable Over Current Protection Triggers
Hiccup
NMOS LDO Controller Available
FB UVLO Followed by Hiccup Feature in Both
Controllers
5V High Side Driver and 12 V Low Side Driver
Pb-free and RoHS Compliant
n
n
n
n
n
n
n
n
n
n
n
n
APPLICATIONS
Graphic Card on Board Converters
On Board DC to DC such as
12V to 3.3V, 2.5V or 1.8V
Set Top Box and LCD Display
ASIC Power Supplies
TYPICAL APPLICATION
VIN1
+12V
15
7 VIN
10
BST
VCC
HDRV 14
SW 13
12
Connected to 5VREG Voltage mode
Connected to GND Constant on time mode
Connected to 5VREG synchronous mode
Connected to GND Diode emulation mode
VOUT1
+1.8V@8A
PGOOD
9 FCCM
16 RT
LX2750
8 MODE
LDRV 11
2
FB
COMP
6
VREF_OC
LDO_DRV
1
3
5 REFIN
GPIO
17
GND(PAD)
LDO_FB 4
VOUT2
+1.1V
Figure1 - Typical application of LX2750
ORDERING INFORMATION
Device
LX2750CLQ
Temperature
0 to 70
o
C
Package
3X3 MLPQ-16L
Frequency
200kHz to 2MHz
Pb-Free
Yes
Note: Available in Tape & Reel. Append the letters "TR" to the part number. (i.e. LX2750CLQ-TR)
Rev. 1.0a
07/14/10
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
1

LX2750CLQ Related Products

LX2750CLQ LX2750CLQ-TR
Description Switching Controller, Voltage-mode, 2000kHz Switching Freq-Max, PQCC16 Switching Controller, Voltage-mode, 2000kHz Switching Freq-Max, PQCC16
Maker Microchip Microchip
package instruction HVQCCN, HVQCCN,
Reach Compliance Code compli compli
Other features ALSO HAS CONTROL TECHNIQUE OF PFM; ALSO OPERATES IN ADJUSTABLE DOWN TO 0.8V ALSO HAS CONTROL TECHNIQUE OF PFM; ALSO OPERATES IN ADJUSTABLE DOWN TO 0.8V
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode VOLTAGE-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 16 V 16 V
Minimum input voltage 10 V 10 V
Nominal input voltage 12 V 12 V
JESD-30 code S-PQCC-N16 S-PQCC-N16
length 3 mm 3 mm
Number of functions 1 1
Number of terminals 16 16
Maximum operating temperature 70 °C 70 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HVQCCN HVQCCN
Package shape SQUARE SQUARE
Package form CHIP CARRIER CHIP CARRIER
Certification status Not Qualified Not Qualified
Maximum seat height 0.8 mm 0.8 mm
surface mount YES YES
Switch configuration PUSH-PULL PUSH-PULL
Maximum switching frequency 2000 kHz 2000 kHz
Temperature level COMMERCIAL COMMERCIAL
Terminal form NO LEAD NO LEAD
Terminal pitch 0.5 mm 0.5 mm
Terminal location QUAD QUAD
width 3 mm 3 mm
Problems encountered when porting MC68HC908QT4 program to MC9S08QD4
I have transplanted the MC68HC908QT4 program to MC9S08QD4. However, in the PWM setting, the function bit TSC0_CH0MAX of 908QT4 is set to 0 or 1, but QD4 does not have this corresponding bit. How can I...
lukesuncn NXP MCU
I have a SOT23-6 package with a silk screen model number.
I have a SOT23-6 package AC-DC power management IC with the screen printing: Pm7ZA. I can't find the model number. Please help me....
XQLT Analog electronics
Inverter data
[i=s] This post was last edited by paulhyde on 2014-9-15 03:03 [/i] I'll send you some inverter information....
beautygj Electronics Design Contest
EMC Tutorial Classic 5 Chapters
EMC Tutorial Classic 5 Chapters...
linda_xia Analog electronics
Because we are working on Android now, many embedded boards are coming out (there are new links in the update post, see the top of this post for details)
[i][size=6][color=#ff0000][b][url=https://bbs.eeworld.com.cn/thread-548929-1-1.html][i]>>[/i]Because we are now working on Android, many embedded boards are going to be released (update) [/url][/b][/c...
dzc2001 Buy&Sell
Bluetooth DIY warm-up activity: file system transplantation
I have been studying the fat file system recently, and I am going to port it to CC2540 to make a Bluetooth U disk. I first played with the file system on ST's M0, and it felt good. I ported the fatfs ...
wateras1 RF/Wirelessly

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 750  2340  1253  2695  1494  16  48  26  55  31 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号