LTC3816_15 Datasheet, PDF (44/44 Pages) Linear Technology – Single-Phase Wide VIN Range DC/DC Controller for Intel IMVP-6/IMVP-6.5 CPUs

LTC3816
Typical Application
An IMVP-6.5 Converter Using Temperature Compensated Inductor DCR Sensing with –3mV/A AVP Slope
15nF
I_MON
10k
14k _8.25k
21k
10k
22pF
15nF
5.1k
1000pF
VR_ON
12k 10pF
2.2nF
470pF 22pF
VID0
VID1
VID2
VID3
VID4
VID5
VID6
I_SENN
I_TCFB
I_TC
I_MAX
I_SENP
PREI_MON
LFF
I_MON
VRTT#
LT3816
RPTC
CLKEN#
VR_ON
PWRGD
V_SS(SEN)
V_CC(SEN)
SW
SERVO
TG
V_FB
COMP
SS
DPRSLPVR
CSLEW
BOOST
V_IN
EXTV_CC
INTV_CC
BG
BSOURCE
MODE/SYNC
VID0
RFREQ
VID1
VID6
VID2
VID5
VID3
GND
VID4
6.98k
0.1µF
2.55k
VRTT# ^56Ω
1.1V
CLKEN# ^1.9k
3.3V
PWRGD ^1.9k
Q_T
0.1µF
D_B
Q_B
5V
V_IN
4.5V TO 24V
NTC
+
C_VIN
100Ω
L
100Ω
+
C_BULK CCER
PTC
4.7µF
C_BULK: 3 s SANYO 2TPF330M6 (330µF)
C_CER: 20 s 10µF + 2 s 1µF
C_IN: 2 s SANYO OS-CON 35SVPD47M + 2 s 10µF
D_B: CMDSH-4E
L: IHLP-5050CE-01 (0.33µH, DCR = 1.3mΩ)
NTC: MURATA NCP18XH103
PTC: MURATA PRF18BC471QB1RB
Q_B: 2 s RENESAS RJK0330DPB
Q_T: RENESAS RJK0305DPB
V_CC(CORE)
I_LOAD(MAX) = 27A
Related Parts
PART NUMBER DESCRIPTION
LTC3732
3-Phase, 5-Bit VID, 600kHz Synchronous Buck Switching Regulator Controller
LTC3733
3-Phase, 5-Bit VID, 600kHz Synchronous Buck Switching Regulator Controller
LTC3734
Single-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs
LTC3735
LTC3738
LTC3819
LTC3850
2-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs
3-Phase Buck Controller for Intel VRM9/VRM10 with Active Voltage Positioning
2-Phase, High Efficiency, Step-Down Controller for AMD CPUs
Dual 2-Phase Synchronous Controller
LTC3851A
LTC3853
No R_SENSE™ Wide Input Range Step-Down Controller
Triple Output, Multiphase Synchronous Step-Down Controller
COMMENTS
VRM9.0 and VRM9.1, VID = 1.1V to 1.85V
AMD Opteron (VID = 0.8V to 1.55V)
6-Bit IMVP-4 VID: 0.7V ≤ V_OUT ≤ 1.708V, I_LOAD ≤ 25A,
Lossless Voltage Positioning
6-Bit IMVP-IV, VID Code: V_OUT = 0.7V to 1.708V
VID = 1.1V to 1.85V
4V ≤ V_IN ≤ 36V, VID =1.025V to 1.4125V
Dual 180° Phase Controllers, 4V ≤ V_IN ≤ 28V,
97% Duty Cycle
4V ≤ V_IN ≤ 38V, Very Low Dropout with Tracking
Triple Phase Version of LTC3850 in a 40-Lead
6mm × 6mm QFN Package
44 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3816f
LT 0710 • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2010