Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- OPERATING RANGE
- ELECTRICAL CHARACTERISTICS
- TYPICAL PERFORMANCE CHARACTERISTICS
- BLOCK DIAGRAM
- APPLICATION INFORMATION
- CONSTANT ON-TIME CONTROL OVERVIEW
- INTERNAL OPERATION UNDER-VOLTAGE COMPARATOR
- ON-TIME GENERATOR SHUTDOWN
- CURRENT LIMIT
- N-CHANNEL HIGH SIDE SWITCH AND DRIVER
- THERMAL SHUTDOWN
- COMPONENT SELECTION
- FREQUENCY SELECTION
- INDUCTOR SELECTION
- OUTPUT CAPACITOR
- RIPPLE FEED FORWARD
- FEEDBACK RESISTORS
- INPUT CAPACITOR
- AVIN CAPACITOR
- SOFT-START CAPACITOR
- EXTVCC CAPACITOR
- SHUTDOWN
- CBOOT CAPACITOR
- PGOOD RESISTOR
- CATCH DIODE
- BYPASS CAPACITOR
- EXTERNAL OPERATION STARTUP
- UNDER- & OVER-VOLTAGE CONDITIONS
- CURRENT LIMIT
- MODES OF OPERATION
- LINE REGULATION
- TRANSIENT RESPONSE
- EFFICIENCY
- PRE-BIAS LOAD STARTUP
- THERMAL CONSIDERATIONS
- LAYOUT CONSIDERATIONS
- Revision History
-40
-20 0 20 40 60 80 100 120
TEMPERATURE (
o
C)
EXT V
CC
(V)
3.635
3.64
3.645
3.65
3.655
3.66
3.665
3.67
-20 20 60 100
140
TEMPERATURE (
o
C)
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
V
IL
AND V
IH
(V)
-60
V
IH
(V)
0 40 80 120-40
V
IL
(V)
0
2
4
6
8
10
12
14
16
18
20
4.5
7.5 10.5 13.5 16.5 24
V
IN
(V)
19.5
22.5
I
Q
(
PA)
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (
o
C)
0
2
4
6
8
10
12
14
16
I
Q
(SHUTDOWN) (PA)
4.5
7.5 10.5 13.5 16.5 24
V
IN
(V)
19.5
22.5
1.05
1.1
1.15
1.2
1.25
1.3
1.35
1.4
1.45
1.5
1
I
Q
(PA)
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (
o
C)
I
Q
(mA)
1.12
1.14
1.16
1.18
1.2
1.22
1.24
1.26
1.28
1.30
1.32
LM2696
www.ti.com
SNVS375B –OCTOBER 2005–REVISED APRIL 2013
TYPICAL PERFORMANCE CHARACTERISTICS
I
Q
vs Temp I
Q
vs V
IN
Figure 2. Figure 3.
I
Q
in Shutdown vs Temp I
Q
vs V
IN
in Shutdown
Figure 4. Figure 5.
Shutdown Thresholds vs Temp EXTV
CC
vs Temp
Figure 6. Figure 7.
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