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Linear Technology Electronic Components Datasheet

LTC7510 Datasheet

Digital DC/DC Controller

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LTC7510
Digital DC/DC Controller
with PMBus Interface
FEATURES
PMBusTM Serial Interface for Programming and
Telemetry
Digital PID Control Loop
Output Voltage Range: 0.7V to VCC – 0.9V
Optional Resistor-Based PMBus Address, Output
Voltage, Frequency and Current Limit Set
www.Da1t5a0SkhHeezt4toU.c2oMmHz Switching Frequency
DCR Current Sense with Temperature Compensation
Adjustable Active Voltage Positioning (AVP) Control
On-Chip Non-Volatile Memory (NVM) for
Configuration Storage
Soft-Start Into Pre-Biased Load
Current Sharing
32-Lead (5mm × 5mm) QFN Package
APPLICATIONS
Digital Power System Management
Intelligent Point-of-Load (POL) Power Regulation
DESCRIPTION
The LTC®7510 is a digital DC/DC controller with onboard
non-volatile memory and PMBus interface for real time
reporting and control of point-of-load (POL) power
management. Power supply sequencing, margining, turn-
on/-off and fault detection are easily programmed via the
PMBus interface.
The LTC7510 uses a digital control loop which eliminates
external compensation components. The controller sup-
ports current sharing of multiple ICs; up to four controllers
can be synchronized for multiphase operation.
The LTC7510 provides superior accuracy through
internal calibration to correct current sense error
sources upon start-up and programmable temperature
compensation provides accurate current sensing over
temperature. The LTC7510 is available in a 32-lead (5mm
× 5mm) QFN package.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
DC/DC Controller with Read/Write PMBus Digital Interface
+12V
VDRIVE
+5V
SMBus
INTERFACE
POWER
MANAGEMENT
INTERFACE
FAULT
OUTPUTS
SDA VINSEN
SCL
SMBALERT_N
VCC
VD33
LTC7510 VD25
PWRGD
OUTEN
GND
FAULT1
FAULT2
PWM
TEMPSEN
ISENN
ISENP
SADDR_L
SADDR_M
VSENP
VSENN
VSET
FSET
VTRIM
IMAXSET
OPTIONAL
BOOST
VCC TG
LTC4443-1
VLOGIC
TS
IN GND BG
VOUT
LOAD
RTN
7510 TA01
7510fa
1


Linear Technology Electronic Components Datasheet

LTC7510 Datasheet

Digital DC/DC Controller

No Preview Available !

LTC7510
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage (VCC) ................................... –0.3V to 6V
VSENP, VSENN................................................ –0.3V to 3V
ISENP, ISENN .................................................–0.3V to VCC
OUTEN, SYNC_IN, SYNC_OUT, SMBALERT_N,
PWRGD, PWM, SDA, SCL, FAULT1,
FAULT2, SADDR_M...................................... –0.3V to 6V
All Other Pins .......................................... –0.3V to 4.25V
Differential Voltage
VSEN_DIFF (VSENP – VSENN) .................... –0.3V to 2.5V
Operating Temperature Range (Note 2).... –40°C to 85°C
wwwJ.uDnactatiSohneeTte4mU.cpoemrature ........................................... 125°C
Storage Temperature Range................... –65°C to 150°C
Write Temperature ....................................... 0°C to 85°C
Read Temperature.................................... –40°C to 85°C
PIN CONFIGURATION
TOP VIEW
32 31 30 29 28 27 26 25
VD25 1
SDA 2
24 VD33
23 NC
SADDR_L 3
22 NC
PWRGD 4
SADDR_M 5
OUTEN 6
IMAXSET 7
VTRIM 8
33 21 ISENN
20 ISENP
19 ISH_GND
18 VSENN
17 VSENP
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC7510EUH#PBF
LTC7510EUH#TRPBF
7510
32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C
LTC7510IUH#PBF
LTC7510IUH#TRPBF
7510
32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
2 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
7510fa
LT 0308 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2008


Part Number LTC7510
Description Digital DC/DC Controller
Maker Linear Technology
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