LTC3721EGN-1 Linear Technology, LTC3721EGN-1 Datasheet - Page 3

• Manufacturer Part Number: LTC3721EGN-1
• Description: IC CTRLR PWM PUSH PULL HE 16SSOP
• Manufacturer: Linear Technology

Specifications of LTC3721EGN-1

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 50%
• Buck: No
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SSOP
• Frequency-max: 1MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Supply: -

temperature range, otherwise specifications are at T
SYMBOL
Pulse Width Modulator
ROS
I
I
DCMAX
DCMIN
DTADJ
Oscillator
OSCI
OSCT
OSCV
Error Amplifier
V
FB
AVOL
I
V
V
I
I
Reference
V
REFLD
REFLN
REFTV
REFSC
Push-Pull Outputs
DRVH(x)
DRVL(x)
RDH(x)
RDL(x)
TDR(x)
TDF(x)
Current Limit and Shutdown
CLPP
CLSD
CLDEL
SSI
ELECTRICAL CHARACTERISTICS
RMP
SLP
IB
SOURCE
SINK
FB
OH
OL
REF
I
PARAMETER
Ramp Offset Voltage
Ramp Discharge Current
Slope Compensation Current
Maximum Duty Cycle
Minimum Duty Cycle
Dead-Time
Initial Accuracy
V
C
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
Pulse by Pulse Current Limit Threshold
Shutdown Current Limit Threshold
Current Limit Delay to Output
Soft-Start Current
CC
T
Ramp Amplitude
Variation
A
CONDITIONS
Measured on COMP, CS = 0V
CS = 1V, COMP = 0V, C
Measured on CS, C
COMP = 4.5V
COMP = 0V
T
V
Measured on C
COMP = 2.5V, (Note 3)
Measured on FB, (Note 4)
COMP = 1V to 3V, (Note 3)
COMP = 2.5V, (Note 3)
Load on COMP = –100µA
Load on COMP = 100µA
COMP = 2.5V
COMP = 2.5V
T
Load on V
V
Line, Load and Temperature
V
I
I
I
I
C
C
Measured on CS
Measured on CS
100mV Overdrive on CS, (Note 2)
SS = 2.5V
OUT(x)
OUT(x)
OUT(x)
OUT(x)
A
A
CC
CC
REF
OUT(x)
OUT(x)
= 25°C. V
= 25°C, C
= 25°C, Measured on V
= 6.5V to 9.5V
= 6.5V to 9.5V
Shorted to GND
The
= –100mA
= 100mA
= –10mA to –100mA
= –10mA to –100mA
= 1nF
= 1nF
REF
●
CC
T
= 100µA to 5mA
= 270pF
denotes the specifications which apply over the full operating
T
= 9.5V unless otherwise noted.
C
T
T
= 1V
= 2.25V
T
= 4V
REF
●
●
●
●
1.172
4.925
4.900
– 0.3
MIN
220
400
280
475
4.7
47
–3
70
18
10
2
LTC3721-1
5.000
0.65
48.2
2.35
4.92
0.27
5.00
0.17
TYP
130
250
700
300
600
1.2
9.2
2.9
1.7
68
10
10
80
50
30
90
30
13
0
5
5
2
1
5.075
5.100
MAX
1.22
280
320
725
2.5
0.5
50
50
15
10
45
16
3
sn37211 37211fs
UNITS
3
kHz
mA
mA
mV
mV
mA
mV
mV
µA
µA
dB
nA
µA
µA
ns
ns
ns
ns
%
%
%
Ω
Ω
V
V
V
V
V
V
V
V
V
V