ltc2978 Linear Technology Corporation, ltc2978 Datasheet - Page 64

• Manufacturer Part Number: ltc2978
• Description: Octal Pmbus Power Supply Monitor And Controller With Eeprom
• Manufacturer: Linear Technology Corporation

LTC2978
Typical applicaTion
relaTeD parTs
PART NUMBER
LTC2970
LTC4151
LTC4210-3
LTC4412
LTM
LTM4608
µModule is a registered trademark of Linear Technology Corporation. PowerPath, ThinSOT and Hot Swap are trademarks of Linear Technology Corporation.

®
4601
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
<15V
V
24.3k
IN
10k
DESCRIPTION
Dual I
High Voltage I
Hot Swap™ Controller in 6-Lead SOT-23 Package
Low Loss PowerPath™ Controller in ThinSOT™
8A, Low V
and Margining
8A, Low V
Multiphase and Frequency Synchronization
0.22µF
BAT54
2
ON
C Power Supply Monitor and Margining Controller
V
●
TIMER GND
CC
LTC4210-3
FAX: [phone]
Figure 23. LTC2978 Application Circuit with Crowbar Protection on Intermediate Bus
R
0.007
IN
IN
SENSE
DC/DC µModule
DC/DC µModule with Tracking, Margining,
2
SENSE
C Current and Voltage Monitor
GATE
Si4894BDY
Q1
4.99k
0.01µF
100
68
0.01µF
®
●
with PLL, Output Tracking
www.linear.com
10k
2907
220
0.1µF
MCR12DC
V
V
V
PWR
IN_EN
0.1µF
DD33
COMMENTS
14-Bit ∆Σ ADC with < ±0.5% TUE, Dual 8-Bit IDACs with 1x Voltage
Buffers
7V to 80V, 12-Bit Resolution
Adjustable Analog Current Limit with Circuit Breaker, Fast Response
Limits Peak Fault Current
Replaces Power Supply ORing Diodes, Minimal External Components,
Automatic Switching Between DC Sources, Simplifies Load Sharing with
Multiple Batteries, Low Quiescent Current: 11µA
Complete Switch Mode Power Supply, 4.5V to 20V Input Voltage, 0.6V
to 5V Output Voltage, PLL Frequency Synchronization, ±1.5% Regulation
Complete Switch Mode Power Supply, 2.7V to 5.5V Input Voltage, 0.6V
to 5V Output Voltage, Onboard Frequency Synchronization, ±1.5%
Regulation
V
DD33
LTC2978*
V
DD25
V
V
V
SENSEM0
OUT_EN0
V
SENSEP0
V
0.1µF
V
IN_SNS
DACM0
DACP0
REFM
REFP
GND
0.1µF
*SOME DETAILS OMITTED FOR CLARITY
ONLY ONE OF EIGHT CHANNELS SHOWN
LOAD
C
BYPASS
 LINEAR TECHNOLOGY CORPORATION 2009
LT 0909 REV A • PRINTED IN USA
V
V
V
SGND
RUN/SS
IN
OUT
CONVERTER
FB
DC/DC
GND
2978 F23
2978fa