ltc1629-6 Linear Technology Corporation, ltc1629-6 Datasheet - Page 3

• Manufacturer Part Number: ltc1629-6
• Description: Polyphase, Synchronous Step-down Switching Regulator
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
SYMBOL
I
I
I
DF
TG1, 2 t
TG1, 2 t
BG1, 2 t
BG1, 2 t
TG/BG t
BG/TG t
t
Internal V
V
V
V
V
V
Oscillator and Phase-Locked Loop
f
f
f
R
I
R
CLKOUT
CLK
CLK
PGOOD Output
V
I
V
SCL
SDLDO
SENSE
ON(MIN)
NOM
LOW
HIGH
PLLFLTR
PGOOD
INTVCC
LDO
LDO
EXTVCC
LDOHYS
PGL
PG
PLLIN
RELPHS
MAX
HIGH
LOW
INT
EXT
1D
2D
r
f
r
f
CC
Regulator
PARAMETER
RUN/SS Discharge Current
Shutdown Latch Disable Current
Total Sense Pins Source Current
Maximum Duty Factor
Top Gate Transition Time:
Rise Time
Fall Time
Bottom Gate Transition Time:
Rise Time
Fall Time
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
Internal V
INTV
EXTV
EXTV
EXTV
Nominal Frequency
Lowest Frequency
Highest Frequency
PLLIN Input Resistance
Phase Detector Output Current
Controller 2-Controller 1 Phase
Phase (Relative to Controller 1)
Clock High Output Voltage
Clock Low Output Voltage
PGOOD Voltage Low
PGOOD Leakage Current
PGOOD Trip Level, Either Controller
Sinking Capability
Sourcing Capability
CC
CC
CC
CC
Load Regulation
Voltage Drop
Switchover Voltage
Switchover Hysteresis
CC
Voltage
CONDITIONS
Soft Short Condition V
V
Each Channel; V
In Dropout
C
C
C
C
C
C
Tested with a Square Wave (Note 5)
6V < V
I
I
I
I
V
V
V
f
f
V
V
V
V
V
I
V
V
CC
CC
CC
CC
PLLIN
PLLIN
PGOOD
EAIN
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
PLLFLTR
PLLFLTR
PLLFLTR
PHASMD
PHASMD
PHASMD
PHASMD
PHASMD
PGOOD
EAIN
= 0 to 20mA; V
= 20mA; V
= 20mA, EXTV
= 20mA, EXTV
V
V
A
EAIN
EAIN
= 0.4V
with Respect to Set Output Voltage
< f
> f
= 3300pF
= 3300pF
= 3300pF
= 3300pF
= 3300pF Each Driver
= 3300pF Each Driver
IN
= 25 C. V
= 2mA
= 5V
OSC
OSC
< 30V; V
= 1.2V
= 0V
= 0V, Open
= 5V
= 0V
= Open
= 5V
Ramping Negative
Ramping Positive
2.4V
The
EXTVCC
SENSE1
EXTVCC
IN
CC
CC
EXTVCC
denotes the specifications which apply over the full operating
= 15V, V
Ramping Positive
Ramping Negative
= 5V
EAIN
–
, 2
= 4V
= 4V
– = V
= 0.4V; V
RUN/SS
SENSE1
RUN/SS
+
= 5V unless otherwise noted.
, 2
+ = 0V
= 4.5V
MIN
– 85
190
120
280
0.5
4.8
4.5
98
– 8
4
8
LTC1629-6
99.5
TYP
– 60
– 15
– 10
180
220
140
310
180
240
120
1.6
5.0
0.2
4.7
0.2
0.1
30
40
30
20
90
90
80
50
60
90
2
10
15
MAX
160
250
160
360
– 12
5.2
1.0
0.2
0.3
90
90
90
90
4
5
12
1
UNITS
16296f
3
Deg
Deg
Deg
Deg
Deg
kHz
kHz
kHz
mV
k
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
A
A
A
V
V
V
A
A
V
V
V
A