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LTC7510
1
7510fa
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Digital DC/DC Controller
with PMBus Interface
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.
■
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
■
150kHz to 2MHz Switching Frequency
■
DCR Current Sense with Temperature Compensation
■
Adjustable Active Voltage Positioning (AVP) Control
■
On-Chip Non-Volatile Memory (NVM) for
Conguration Storage
■
Soft-Start Into Pre-Biased Load
■
Current Sharing
■
32-Lead (5mm × 5mm) QFN Package
■
Digital Power System Management
■
Intelligent Point-of-Load (POL) Power Regulation
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
DC/DC Controller with Read/Write PMBus Digital Interface
LTC7510
VCC
VD33
VD25
GND
PWM
ISENN
ISENP
SDA
SCL
SMBALERT_N
PWRGD
OUTEN
FAULT1
FAULT2
VSENP
VSENN
TEMPSEN
SADDR_M
VSET
FSET
VTRIM
IMAXSET
OPTIONAL
VINSEN
SADDR_L
VDRIVE
+12V
SMBus
INTERFACE
+5V
RTN
VOUT
7510 TA01
LOAD
TS
TG
BG
VCC
VLOGIC
IN
GND
POWER
MANAGEMENT
INTERFACE
FAULT
OUTPUTS
BOOST
LTC4443-1