LTC3722EGN-2#TR Linear Technology, LTC3722EGN-2#TR Datasheet - Page 4

• Manufacturer Part Number: LTC3722EGN-2#TR
• Description: IC CTRLR PWM VOLTAGE-MODE 24SSOP
• Manufacturer: Linear Technology

Specifications of LTC3722EGN-2#TR

• Pwm Type: Voltage Mode, Full Bridge
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 98.5%
• Voltage - Supply: 3.8 V ~ 10.3 V
• Buck: No
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: Yes
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-SSOP
• Frequency-max: 1MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LTC3722-1/LTC3722-2
elecTrical characTerisTics
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Sync amplitude = 5V
frequency = one-half sync frequency.
Note 3: Includes leading edge blanking delay, R
Note 4: FB is driven by a servo-loop amplifier to control V
tests.
Note 5: Set FB to –0.3V, 2.5V and insure that COMP does not phase invert.

temperature range, otherwise specifications are at T
SYMBOL PARAMETER
Error Amplifier
V
FBI
A
IIB
V
V
I
I
Reference
V
REFLD
REFLN
REFTV
REFSC
Outputs
OUTH(x)
OUTL(x)
R
R
t
t
SDEL
Current Limit and Shutdown
CLPP
CLSD
CLDEL
SSI
SSR
FLT
SOURCE
SINK
r(x)
f(x)
VOL
FB
OH
OL
REF
HI(x)
LO(x)
FB Input Voltage
FB Input Range
Open-Loop Gain
Input Bias Current
Output High
Output Low
Output Source Current
Output Sink Current
Initial Accuracy
Load Regulation
Line Regulation
Total Variation
Short-Circuit Current
Output High Voltage
Output Low Voltage
Pull-Up Resistance
Pull-Down Resistance
Rise Time
Fall Time
SYNC Driver Turn-0ff Delay
Pulse by Pulse Current Limit Threshold
Shutdown Current Limit Threshold
Current Limit Delay to Output
Soft-Start Current
Soft-Start Reset Threshold
Fault Reset Threshold
P-P
, pulse width = 50ns. Verify output (A-F)
LEB
= 20k.
COMP
A
= 25°C. V
CONDITIONS
for these
COMP = 2.5V (Note 4)
Measured on FB (Note 5)
COMP = 1V to 3V (Note 4)
COMP = 2.5V (Note 4)
Load on COMP = –100µA
Load on COMP = 100µA
COMP = 2.5V
COMP = 2.5V
T
Load on V
V
Line, Load
V
I
I
I
I
C
C
R
Measured on CS
Measured on CS
100mV Overdrive on CS (Notes 3, 7)
SS = 2.5V
Measured on SS
Measured on SS
OUT(x)
OUT(x)
OUT(x)
OUT(x)
A
CC
REF
OUT(x)
OUT(x)
SPRG
= 25°C, Measured on V
= 6.5V to 9.5V
The
Shorted to GND
= 100k
= –50mA
= 50mA
= –50mA to –10mA
= –50mA to –10mA
= 50pF (Note 8)
= 50pF (Note 8)
l
CC
REF
denotes the specifications which apply over the full operating
= 9.5V, unless otherwise noted.
= 100µA to 5mA
Note 6: The LTC3722E-1/LTC3722E-2 are guaranteed to meet performance
specifications from 0°C to 85°C. Specifications over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls. The LTC3722I-1/LTC3722I-2
are guaranteed to meet performance specifications over the full –40°C to
85°C operating temperature range.
Note 7: Guaranteed by design, not tested in production.
Note 8: Rise time is measured from the 10% to 90% points of the rising
edge of the driver output signal. Fall time is measured from the 90% to
10% points of the falling edge of the driver output signal.
REF
l
1.172
4.925
4.900
–0.3
0.55
MIN
400
270
4.7
7.9
0.7
4.5
70
18
2
7
1.204
5.000
4.92
0.18
5.00
0.65
TYP
800
180
300
0.9
8.4
0.6
0.4
3.9
90
30
22
12
80
12
5
5
2
5
5
1.236
5.075
5.100
MAX
0.73
330
2.5
0.4
0.1
3.5
20
15
10
45
30
20
15
15
17
1
372212fa
UNITS
mA
mV
mV
mA
mV
dB
nA
µA
µA
ns
ns
ns
ns
Ω
Ω
V
V
V
V
V
V
V
V
V
V
V