LTC3734 LINER [Linear Technology], LTC3734 Datasheet - Page 2

• Manufacturer Part Number: LTC3734
• Description: Single-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
LTC3734
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (PV
Topside Driver Voltages (BOOST) ..............38V to – 0.3V
Switch Voltage (SW) ....................................32V to – 5V
Boosted Driver Voltages (BOOST-SW) ........7V to – 0.3V
DPRSLPVR, STP_CPUB, MCH_PG, PGOOD,
RDPRSLP, RDPSLP, RBOOT Voltages ........5V to – 0.3V
RUN/SS, FREQSET, PSIB Voltages ..............7V to – 0.3V
VID0-VID5 Voltages .....................................5V to – 0.3V
V
V
Peak Gate Drive Current <1μs (TG, BG) ..................... 5A
Operating Ambient Temperature Range
(Note 2) .................................................. – 40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range ................. – 65°C to 125°C
Reflow Peak Body Temperature ............................ 245°C
temperature range, otherwise specifications are at T
SYMBOL
Main Control Loop
Reference
V
V
V
V
I
V
g
g
V
2
PSIB
m
mOL
SENSEMAX
LOADREG
REFLNREG
PSIB
OVL
ACTIVE
FB
OA
+
Voltage ................................................. 2V to – 0.3V
, V
OA
–
PARAMETER
Regulated Feedback Voltage
Maximum Current Sense Threshold
Output Voltage Load Regulation
Reference Voltage Line Regulation
Forced Continuous Threshold
Forced Continuous Current
Output Overvoltage Threshold
Transconductance Amplifier g
Transconductance Amplifier Gain
Output Voltage in Active Mode
Voltage ................................... 3.6V to –0.3V
W
CC
W W
, SV
CC
m
) ............. 7V to – 0.3V
CONDITIONS
I
I
(Note 4)
Measured in Servo Loop, ΔI
Measured in Servo Loop, ΔI
V
V
Measured with Respect to V
I
I
VID = 010110, I
VID = 010110, I
TH
TH
TH
TH
PVCC
PSIB
Voltage = 0.5V; Measured at V
Voltage = Max; V
= 1.2V, Sink/Source 25μA (Note 4)
= 1.2V, (g
U
= 0V
A
= V
= 25°C. V
SVCC
m
The
= 4.5V to 7V
• Z
TH
TH
L
●
= 0.5V (0°C – 85°C)
= 0.5V (Note 2)
PVCC
; No Ext Load) (Note 4)
CM
denotes the specifications which apply over the full operating
= 1.7V
= V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
TH
TH
FB
SVCC
Voltage: 1.2V to 0.7V
Voltage: 1.2V to 2V
= 0.6V
FB
= 5V, V
ORDER PART
LTC3734EUH
STP_CPUB
(Note 4)
RDPRSLP
SENSE
NUMBER
SENSE
OAOUT
SGND
V
V
OA
OA
RUN/SS
+
–
+
–
1
2
3
4
5
6
7
8
EXPOSED PAD (PIN 33) IS GROUND
32 31 30 29 28 27 26 25
= 5V unless otherwise noted.
9 10 11 12 13 14 15 16
T
MUST BE SOLDERED TO PCB
JMAX
32-LEAD PLASTIC QFN
●
●
●
●
●
= 125°C, θ
UH PACKAGE
1.342
1.336
0.57
0.64
MIN
4.5
33
59
JA
= 34°C/W
U
0.600
1.356
1.356
– 0.1
– 0.5
0.02
0.66
TYP
0.6
72
0.1
MARKING
6
3
UH PART
3734
24
23
22
21
20
19
18
17
W
TG
SW
PV
BG
PGND
VID5
VID4
VID3
1.370
1.376
MAX
– 0.5
0.63
0.68
0.1
7.5
– 1
CC
85
0.5
UNITS
mmho
V/mV
U
3734f
%/V
mV
μA
%
%
V
V
V
V
V