LTC3773EG-PBF LINER [Linear Technology], LTC3773EG-PBF Datasheet - Page 3

• Manufacturer Part Number: LTC3773EG-PBF
• Description: Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
operating temperature range, otherwise specifi cations are at T
SYMBOL
Main Control Loop
V
I
V
V
V
g
f
A
V
V
I
I
I
I
V
I
DF
TG R
TG R
BG R
BG R
TG/BG t
BG/TG t
t
Tracking
I
V
VFB
u
VCC
VDR
BOOST
SDB
SENSE
ON(MIN)
TRACK
FB
SENSEMAX
FBLOADREG
FBLNREG
m
ERR
UVR
CC
SDB
FBTRACK
MAX
UP
DOWN
UP
DOWN
1D
2D
PARAMETER
Feedback Voltage
Feedback Pin Input Current
Maximum Current Sense Threshold
Feedback Voltage Load Regulation
Feedback Voltage Line Regulation
Transconductance Amplifi er g
Transconductance Amplifi er GBW
Transconductance Amplifi er DC Gain
V
Undervoltage Hysteresis
V
V
Normal Mode
Shutdown
V
Normal Mode
Shutdown
V
SDB Source Current
SDB1, SDB2, SDB3 Source Content
SDB Power Up Threshold
SDB1 Pin CH1 ON Threshold
SDB2 Pin CH2 ON Threshold
SDB3 Pin CH3 ON Threshold
Channel On Threshold Hysteresis
SENSE Pins Source Current
Maximum Duty Factor
TG Driver Pull-Up On-Resistance
TG Driver Pull-Down On-Resistance
BG Driver Pull-Up On-Resistance
BG Driver Pull-Down On-Resistance
Top Gate OFF to Bottom Gate ON Delay
Synchronous Switch-On Delay Time
Bottom Gate OFF to Top Gate ON Delay
Top Switch-On Delay Time
Minimum On-Time
TRACK Pin Pull-Up Current
V
CC
CC
CC
DR
BOOST
FB
Normal Mode
Shutdown
Voltage During Tracking
Undervoltage Reset
Supply Voltage
Supply Current
Supply Current
Supply Current
m
CONDITIONS
V
0 ≤ V
V
Measured in Servo Loop (Note 4)
Δ
Δ
V
V
V
V
V
V
V
V
V
V
V
Ramping Positive
V
PLLFLTR Floats, In Dropout
TG High, I
TG Low, I
BG High, I
BG Low, I
All Controllers
All Controllers
Tested with a Square Wave (Note 8)
V
V
V
ITH
FB
CC
ITH
ITH
ITH
CC
CC
SDB
DR
SDB
BOOST
SDB
SENSE
SDB
TRACK
TRACK
ITH
ITH
(Note 3) The
= 0.55V, V
Ramping Positive
= 4.5V to 6V
= 5V
= 5V (Note 6)
= 1.2V, 0°C ≤ T ≤ 85°C (Note 4)
= 1.2V, Sink/Source 25μA (Note 4)
= 1.2V (Note 5)
= 0.8V to 1.6V
Voltage = 1.2V to 0.7V
Voltage = 1.2V to 2V
FB
= 0V
= 0V
= 0V
= 5V, V
+
A
= 0.2V, V
= 0.4V, V
= 5V, V
≤ 1V
, V
= 25°C. V
OUT
OUT
OUT
OUT
SENSE
TRACK
= 100mA (Note 7)
= 100mA (Note 7)
TRACK
= 100mA (Note 7)
= 100mA (Note 7)
SW
–
ITH
ITH
= 1.2V, Current at Each Pin
●
= 0V (Note 6)
= 0V
= 1.2V (Note 4)
= 1.2V (Note 4)
CC
denotes the specifi cations which apply over the full
= 1V, V
= V
DR
SENSE
= V
–
BOOST
= 2.5V
= V
SDB
●
●
●
●
●
●
●
●
●
●
●
= 5V, unless otherwise noted.
0.594
0.591
1.14
1.71
MIN
180
380
2.3
3.7
4.5
0.4
2.3
65
60
50
97
0.600
0.600
–1.5
0.15
–0.2
0.01
0.16
–0.5
98.5
TYP
–15
–10
–13
130
200
400
2.7
4.1
2.8
1.2
1.8
2.4
2.2
1.8
2.4
0.9
75
75
56
20
50
50
–1
3
5
5
1
1
1
LTC3773
–100
MAX
0.606
0.609
–0.5
1.26
1.89
–20
220
420
0.5
3.2
4.4
2.5
85
90
30
6
4
UNITS
mmho
3773fb
MHz
3
%/V
mV
mV
mA
mA
mA
mV
mV
nA
dB
μA
μA
μA
μA
μA
μA
μA
ns
ns
ns
%
%
%
%
Ω
Ω
Ω
Ω
V
V
V
V
V
V
V
V
V