LTC7510 Datasheet, PDF (1/2 Pages) Linear Technology – Digital DC/DC Controller with PMBus Interface

LTC7510
Digital DC/DC Controller
with PMBus Interface
FEATURES
■ _PMBus^TM _{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}
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
V_DRIVE
+5V
SMBus
INTERFACE
POWER
MANAGEMENT
INTERFACE
FAULT
OUTPUTS
SDA
VINSEN
SCL
V_CC
SMBALERT_N
V_D33
LTC7510 _VD25
PWRGD
OUTEN
GND
FAULT1
FAULT2
PWM
TEMPSEN
I_SENN
I_SENP
SADDR_L
SADDR_M
V_SENP
V_SENN
V_SET
F_SET
V_TRIM
I_MAXSET
OPTIONAL
BOOST
V_CC
TG
LTC4443-1
V_LOGIC
TS
IN GND BG
V_OUT
LOAD
RTN
7510 TA01
7510fa
1