Linear Technology LTM4620AEV Demo Board, Dual 16VIN, 13A, 5VOUT Step Down µModule Regulator DC1759A DC1759A 数据表
产品代码
DC1759A
LTM4620A
1
4620afb
For more information
www.linear.com/LTM4620A
TYPICAL APPLICATION
DESCRIPTION
Dual 13A or Single 26A
DC/DC µModule Regulator
is a complete dual 13A, or single 26A output
switching mode DC/DC power supply with wider V
OUT
range
and higher efficiency than the LTM4620. Included in the
package are the switching controller, power FETs, inductors
and all supporting components. Operating from an input
voltage range of 4.5V to 16V, the LTM4620A supports two
outputs each with an output voltage range of 0.6V to 5.3V,
set by a single external resistor. Its high efficiency design
delivers up to 13A continuous current for each output. Only
a few input and output capacitors are needed.
The device supports frequency synchronization, multiphase
The device supports frequency synchronization, multiphase
operation, Burst Mode
®
operation and output voltage
tracking for supply rail sequencing and has an onboard
temperature diode for device temperature monitoring. High
switching frequency and a current mode architecture enable
a very fast transient response to line and load changes
without sacrificing stability.
Fault protection features include overvoltage and
Fault protection features include overvoltage and
overcurrent protection. The power module is offered
in a proprietary space saving and thermally enhanced
15mm
× 15mm × 4.41mm LGA package and 15mm
× 15mm × 5.01mm BGA package. The LTM4620A is
available with SnPb (BGA) or RoHS compliant terminal
finish.
26A, 5V Output DC/DC µModule
®
Regulator
FEATURES
APPLICATIONS
n
Dual 13A or Single 26A Output
n
Wide Input Voltage Range: 4.5V to 16V
n
Output Voltage Range: 0.6V to 5.3V
n
±1.5% Maximum Total DC Output Error
n
Multiphase Current Sharing with Multiple
LTM4620As Up to 100A
n
Higher Efficiency and Wider V
OUT
Range Than LTM4620
n
Differential Remote Sense Amplifier
n
Current Mode Control/Fast Transient Response
n
Adjustable Switching Frequency
n
Overcurrent Foldback Protection
n
Frequency Synchronization
n
Internal Temperature Monitor
n
Output Overvoltage Protection
n
Pin Compatible with the LTM4628 (Dual 8A) and
LTM4620 (Dual 13A)
n
Thermally Enhanced (15mm
× 15mm × 4.41mm)
LGA Package and (15mm
× 15mm × 5.01mm) BGA
Package
n
Telecom and Networking Equipment
n
Industrial Equipment
5V Efficiency vs I
OUT
TOTAL OUTPUT CURRENT (A)
1
80
EFFICIENCY (%)
85
90
95
100
3
5
8 10
4620A TA01b
12 14
19 21
16
23
8V TO 5V EFF (650kHz)
12V TO 5V EFF (750kHz)
4620A TA01a
LTM4620A
V
IN
TEMP
RUN1
RUN2
TRACK1
TRACK2
f
RUN1
RUN2
TRACK1
TRACK2
f
SET
8.25k
5k
100µF
6.3V
×2
100µF
6.3V
×2
PHASMD
V
OUT1
V
OUTS1
SW1
V
FB1
V
FB2
COMP1
COMP2
COMP2
V
OUTS2
V
OUT2
V
OUT
5V
26A
SW2
PGOOD2
PGOOD
MODE_PLLIN CLKOUT INTV
CC
EXTV
CC
PGOOD1
PGOOD
SGND
GND
DIFFP
DIFFN
DIFFOUT
10k*
5.1V*
120k
0.1µF
22µF
25V
×4
4.7µF
INTV
CC
220pF
INTV
CC
V
OUT
* PULL-UP RESISTOR AND
ZENER ARE OPTIONAL
V
IN
7V TO 16V
INTV
CC
L
, LT, LTC, LTM, Linear Technology, the Linear logo, µModule, Burst Mode and PolyPhase
are registered trademarks and LTpowerCAD is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Protected by U.S. Patents,
including 5481178, 5705919, 5929620, 6100678, 6144194, 6177787, 6304066 and 6580258.
Other patents pending.