LTC1929-PG LINER [Linear Technology], LTC1929-PG Datasheet - Page 3

• Manufacturer Part Number: LTC1929-PG
• Description: 2-Phase, High Efficiency,Synchronous Step-Down Switching Regulators
• Manufacturer: LINER [Linear Technology]

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
V
Oscillator and Phase-Locked Loop
f
f
f
R
I
R
PGOOD Output (LTC1929-PG Only)
V
I
V
Differential Amplifier/Op Amp Gain Block (Note 5)
A
CMRR
R
V
SCL
SDLHO
SENSE
ON(MIN)
NOM
LOW
HIGH
PLLFLTR
PGOOD
INTVCC
LDO
LDO
LDO
EXTVCC
LDOHYS
PGL
PG
DA
OS
PLLIN
RELPHS
IN
MAX
INT
EXT
EXT-PG
DA
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
EXTV
Nominal Frequency
Lowest Frequency
Highest Frequency
PLLIN Input Resistance
Phase Detector Output Current
Controller 2-Controller 1 Phase
PGOOD Voltage Low
PGOOD Leakage Current
PGOOD Trip Level
Gain
Common Mode Rejection Ratio
Input Resistance
Input Offset Voltage
Sinking Capability
Sourcing Capability
CC
CC
CC
CC
CC
Load Regulation
Voltage Drop
Voltage Drop
Switchover Voltage
Switchover Hysteresis
CC
Voltage
CONDITIONS
Soft Short Condition V
V
V
Each Channel: V
In Dropout
C
C
C
C
C
C
Tested with a Square Wave (Note 6)
6V < V
I
I
I
I
I
V
V
V
f
f
I
V
V
Differential Amp Mode
Differential Amp Mode; 0V < V
Differential Amp Mode; Measured at V
Op Amp Mode; V
I
CC
CC
CC
CC
CC
PLLIN
PLLIN
PGOOD
DIFFOUT
RUN/SS
EAIN
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
PLLFLTR
PLLFLTR
PLLFLTR
PGOOD
EAIN
A
V
V
EAIN
EAIN
= 25 C. V
= 0 to 20mA; V
= 20mA; V
= 20mA, V
= 20mA, EXTV
= 20mA, EXTV
= 0.5V
with Respect to Set Output Voltage
< f
> f
= 3300pF
= 3300pF
= 3300pF
= 3300pF
= 3300pF Each Driver
= 3300pF Each Driver
IN
= 2mA
Ramping Negative
Ramping Positive
= 5V
= 1mA (LTC1929 Only)
= 4.5V
OSC
OSC
< 30V; V
= 1.2V
= 0V
The
2.4V
EXTVCC
EXTVCC
IN
SENSE1
denotes the specifications which apply over the full operating
CM
= 15V, V
EXTVCC
CC
CC
EXTVCC
= 2.5V; V
Ramping Positive
Ramping Negative
= 5V
= 5V, LTC1929-PG
EAIN
–
, 2
= 4V
= 4V
– = V
RUN/SS
= 0.5V;
DIFFOUT
CM
SENSE1
< 5V
= 5V unless otherwise noted.
= 5V;
LTC1929/LTC1929-PG
+
OS
, 2
+ Input
+ = 0V
0.995
MIN
– 85
190
120
280
0.5
4.8
4.5
98
– 6
46
6
99.5
–7.5
TYP
– 60
– 15
180
120
220
140
310
180
2.0
1.6
5.0
0.2
4.7
0.2
0.1
30
40
30
20
90
90
80
50
55
80
7.5
1
15
1.005
MAX
– 9.5
240
160
250
160
360
4.0
5.2
1.0
0.3
90
90
90
90
9.5
5
6
1
UNITS
3
Deg
kHz
kHz
kHz
V/V
mV
mV
mV
k
k
dB
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
A
A
A
V
V
V
A
A
V
A