E-, I-Grades ....................................... –40°C to 125°C
H-Grade ............................................. –40°C to 150°C
MP-Grade .......................................... –55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C,
θ
JA
= 250°C/W
ORDER INFORMATION
LEAD FREE FINISH
LT4430ES6#PBF
LT4430IS6#PBF
LT4430HS6#PBF
LT4430MPS6#PBF
LEAD BASED FINISH
LT4430ES6
LT4430IS6
LT4430HS6
LT4430MPS6
TAPE AND REEL
LT4430ES6#TRPBF
LT4430IS6#TRPBF
LT4430HS6#TRPBF
LT4430MPS6#TRPBF
TAPE AND REEL
LT4430ES6#TR
LT4430IS6#TR
LT4430HS6#TR
LT4430MPS6#TR
PART MARKING*
LTBFY
LTBFY
LTBFY
LTBFY
PART MARKING*
LTBFY
LTBFY
LTBFY
LTBFY
PACKAGE DESCRIPTION
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
PACKAGE DESCRIPTION
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–55°C to 150°C
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
SYMBOL
V
IN
I
IN
V
UVLO
PARAMETER
Input Voltage Range
Supply Current
Undervoltage Lockout Threshold
The
●
denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 5V, FB = V
FB
, COMP = 1V, unless otherwise noted (Note 3).
CONDITIONS
●
MIN
3
●
●
●
●
●
TYP
1.9
1.9
MAX
20
3.9
4.3
2.5
2.5
2.55
0.6045
0.6075
0.1
UNITS
V
mA
mA
V
V
V
V
V
%
nA
3V ≤ V
IN
≤ 20V (E-, I-Grades)
3V ≤ V
IN
≤ 20V (H-, MP-Grades)
OC Held Low for V
IN
< V
UVLO
(E-, I-Grades)
OC Held Low for V
IN
< V
UVLO
(H-Grade)
OC Held Low for V
IN
< V
UVLO
(MP-Grade)
3V ≤ V
IN
≤ 20V
1.95
1.9
1.9
0.5955
0.5925
–150
2.2
2.2
2.2
0.6
0.6
0.02
–75
V
FB
Feedback Reference Voltage
V
FB
Line Regulation
3V ≤ V
IN
≤ 20V
FB = V
FB
I
FB
FB Input Bias Current
4430fb
2
LT4430
ELECTRICAL CHARACTERISTICS
SYMBOL
I
OC
PARAMETER
Overshoot Control Charging Current
The
●
denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 5V, FB = V
FB
, COMP = 1V, unless otherwise noted (Note 3).
CONDITIONS
V
OC
= 0V (E-, I-Grades)
V
OC
= 0V (H-Grade)
V
OC
= 0V (MP-Grade)
FB = 0.3V
V
COMP
= 0.8V to 1V (E-, I-Grades)
V
COMP
= 0.8V to 1V (H-, MP-Grades)
No Load (Note 4)
FB = 1V
FB = 0V (E-, I-Grades)
FB = 0V (H-Grade)
FB = 0V (MP-Grade)
FB = 0V, COMP = 1V (E-, I-Grades)
FB = 0V, COMP = 1V (H-Grade)
FB = 0V, COMP = 1V (MP-Grade)
FB = 1V, COMP = 1V
–6.4
No Load (Note 4)
FB = 0V, COMP = Open (E-, I-Grades)
FB = 0V, COMP = Open (H-, MP-Grades)
V
IN
= 3V, FB = 1V, COMP = Open,
I
OPTO
= 10mA (E-, I-, H-Grades)
V
IN
= 3V, FB = 1V, COMP = Open,
I
OPTO
= 10mA (MP-Grade)
V
IN
= 20V, FB = 1V, COMP = Open,
I
OPTO
= 10mA
FB = 1V, COMP = Open, OPTO = 0V
(E-, I-, H-Grades)
FB = 1V, COMP = Open, OPTO = 0V
(MP-Grade)
FB = 0V, OPTO = 1.5V (E-, I-, H-Grades)
FB = 0V, OPTO = 1.5V (MP-Grade)
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
MIN
–15
–17
–17
TYP
–8.5
–8.5
–8.5
0.93
48
MAX
–5
–5
–4
UNITS
μA
μA
μA
V
mV
dB
dB
MHz
OC Clamp Voltage
OC Amplifier Offset Voltage
A
VOL
Error Amplifier Open-Loop DC Gain
Error Amplifier Unity-Gain Bandwidth
Error Amplifier Output Swing Low
Error Amplifier Output Swing High
60
55
0.1
1.2
1.2
1.15
–800
–825
–825
80
80
9
0.35
1.33
1.33
1.33
–450
–450
–450
25
–6
600
0.5
0.5
0.85
0.9
–5.6
0.55
1.5
1.55
1.55
–225
–225
–200
V
V
V
V
μA
μA
μA
mA
V/V
kHz
V
V
V
V
Error Amplifier Output Source Current
Error Amplifier Output Sink Current
Opto Driver Inverting DC Gain
Opto Driver –3dB Bandwidth
Opto Driver Output Swing Low
Opto Driver Output Swing High
V
IN
– 1.25 V
IN
– 1.05
V
IN
– 1.3
4.2
10.5
9.5
150
135
V
IN
– 1.05
5.6
22
22
350
350
7.5
45
45
650
650
Opto Driver Output Swing High
I
SC
Opto Driver Output
Short-Circuit Current (Sourcing)
V
mA
mA
μA
μA
Opto Driver Output Sink Current
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:
The LT4430 is tested under pulsed load conditions such that T
J
≈ T
A
.
The LT4430E is guaranteed to meet specifications from 0°C to 125°C
junction temperature. Specifications over the –40°C to 125°C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls. The LT4430I is guaranteed
over the –40°C to 125°C operating junction temperature range, the
LT4430H is guaranteed over the –40°C to 150°C operating junction
temperature range and the LT4430MP is tested and guaranteed over the
–55°C to 150°C operating junction temperature range. High junction
temperatures degrade operating lifetimes; operating lifetime is derated
for junction temperatures greater than 125°C. Note that the maximum
ambient temperature consistent with these specifications is determined by
specific operating conditions in conjunction with board layout, the rated
package thermal impedance and other environmental factors.
Note 3:
All currents into device pins are positive. All currents out of device
pins are negative. All voltages are referenced to GND unless otherwise
specified.
Note 4:
This parameter is guaranteed by correlation and is not tested.
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