LT1513/LT1513-2
W W W
U
ABSOLUTE AXI U RATI GS
Operating Junction Temperature Range
Supply Voltage ....................................................... 30V
Switch Voltage........................................................ 40V
S/S Pin Voltage....................................................... 30V
FB Pin Voltage (Transient, 10ms) ......................... ±10V
VFB Pin Current .................................................... 10mA
IFB Pin Voltage (Transient, 10ms)......................... ±10V
LT1513C............................................... 0°C to 125°C
LT1513I ............................................ –40°C to 125°C
Short Circuit ......................................... 0°C to 150°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
W
U
/O
PACKAGE RDER I FOR ATIO
ORDER PART
ORDER PART
FRONT VIEW
NUMBER
NUMBER
7
6
5
4
3
2
1
V
IN
FRONT VIEW
S/S
V
TAB
IS
GND
V
SW
7
6
5
4
3
2
1
IN
LT1513CR
LT1513CR-2
LT1513IR
LT1513CT7-2
LT1513IT7-2
GND
S/S
V
I
FB
SW
FB
GND
V
I
C
FB
FB
LT1513IR-2
R PACKAGE
7-LEAD PLASTIC DD
V
C
T7 PACKAGE
7-LEAD TO-220
TJMAX = 125°C, θJA = 30°C/ W
WITH PACKAGE SOLDERED TO 0.5INCH2 COPPER
AREA OVER BACKSIDE GROUND PLANE OR INTERNAL
POWER PLANE, θJA CAN VARY FROM 20°C/W TO
> 40°C/W DEPENDING ON MOUNTING TECHNIQUE
TJMAX = 125°C, θJA = 50°C/ W, θJC = 4°C/W
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
VIN = 5V, VC = 0.6V, VFB = VREF, IFB = 0V, VSW and S/S pins open, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
REF
FB Reference Voltage
Measured at FB Pin
C
1.233
1.228
1.245
1.245
1.257
1.262
V
V
V = 0.8V
●
FB Input Current
V
= V
300
550
600
nA
nA
FB
REF
●
●
FB Reference Voltage Line Regulation
2.7V ≤ V ≤ 25V, V = 0.8V
0.01
0.03
%/V
IN
C
V
I
Reference Voltage (LT1513)
Measured at I Pin
–107
–110
–100
–100
–93
–90
mV
mV
IREF
FB
FB
V
= 0V, V = 0.8V
●
●
●
●
●
●
FB
C
I
I
I
I
Input Current
V
= V (Note 2)
IREF
10
25
0.01
2.5
35
0.05
12.5
0
µA
%/V
mV
nA
FB
FB
FB
FB
IFB
Reference Voltage Line Regulation
Voltage Offset (LT1513-2) (Note 3)
Input Current
2.7V ≤ V ≤ 25V, V = 0.8V
IN C
I
I
= 60µA (Note 4)
VFB
–7.5
–200
–700
FBVOS
V
V
= V
–10
–300
1500
IFB
IREF
V
Source Current
= –10mV, V = 1.2V
–100
µA
FB
IREF
FB
g
m
Error Amplifier Transconductance
∆I = ±25µA
C
1100
700
1900
2300
µmho
µmho
●
●
●
Error Amplifier Source Current
Error Amplifier Sink Current
V
V
= V – 150mV, V = 1.5V
120
200
350
µA
µA
FB
FB
REF
C
= V
+ 150mV, V = 1.5V
1400
2400
REF
C
2
Linear [ Linear ]
