lt1618ems-trpbf Linear Technology Corporation, lt1618ems-trpbf Datasheet - Page 2

• Manufacturer Part Number: lt1618ems-trpbf
• Description: Constant-current/constant-voltage 1.4mhz Step-up Dc/dc Converter
• Manufacturer: Linear Technology Corporation

ABSOLUTE AXI U RATI GS
LT1618
V
SW Voltage .............................................................. 36V
ISP, ISN Voltage ...................................................... 36V
I
FB Voltage .............................................................. 1.5V
V
Consult LTC marketing for parts specified with wider operating temperature ranges.
temperature range, otherwise specifications are at T
PARAMETER
Input Voltage
Quiescent Current
Reference Voltage
Reference Voltage Line Regulation
FB Pin Bias Current
Error Amplifier Voltage Gain
Error Amplifier Transconductance
Error Amplifier Sink Current
Error Amplifier Source Current
Current Sense Voltage (ISP, ISN)
ISP, ISN Pin Bias Currents (Note 3)
(ISP, ISN) Common Mode Minimum Voltage
Switching Frequency
Maximum Switch Duty Cycle
Switch Current Limit
2
ELECTRICAL CHARACTERISTICS
PACKAGE/ORDER I FOR ATIO
ADJ
IN
C
Voltage .............................................................. 1.5V
, SHDN Voltage ................................................... 18V
Voltage ............................................................... 6V
10-LEAD (3mm × 3mm) PLASTIC DFN
T
GND
I
JMAX
ISN
ISP
ADJ
FB
EXPOSED PAD (PIN 11) IS GND AND
= 125°C, θ
MUST BE SOLDERED TO PCB
1
2
3
4
5
DD PACKAGE
TOP VIEW
JA
11
= 43°C/W, θ
W
10
9
8
7
6
JC
= 3°C/W
V
SHDN
V
SW
SW
W W
C
IN
U
ORDER PART
LT1618EDD
W
MARKING
DD PART
NUMBER
U
LAFQ
A
CONDITIONS
V
V
V
∆I
V
V
V
V
Measured at FB Pin
1.6V < V
V
V
(Note 4)
SHDN
SHDN
FB
FB
FB
FB
ISP
FB
FB
= 25°C. V
C
= ± 5µA
= 1.263V, V
= 1.35V, V
= 1.10V, V
= 0V, V
= 1V
= 0V
= 1.85V, V
The
= 1.6V, Not Switching
= 0V
IN
(Note 1)
U
< 18V
IADJ
●
IN
denotes specifications which apply over the full operating
C
C
= 1.6V, V
ISN
IN
= 0V
= 1V
= 1V
= 1.8V
= 1.80V, V
Junction Temperature ........................................... 125°C
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range
Lead Temperature (Soldering, 10 sec) (MSOP) .... 300°C
MSOP ............................................... – 65°C to 150°C
DFN ................................................. – 65°C to 125°C
GND
SHDN
I
ISN
ISP
ADJ
FB
T
IADJ
JMAX
10-LEAD PLASTIC MSOP
1
2
3
4
5
= 1.6V, unless otherwise noted.
= 0V
= 125°C, θ
MS PACKAGE
TOP VIEW
JA
= 160°C/W
10
9
8
7
6
●
●
●
●
V
SHDN
V
SW
NC
C
IN
1.250
1.243
MIN
47.5
1.25
1.6
1.5
88
1.263
1.263
0.01
TYP
180
160
550
1.8
0.1
1.4
2.1
±2
15
30
50
50
92
ORDER PART
LT1618EMS
MARKING
MS PART
NUMBER
LTNH
1.276
1.283
MAX
0.03
52.5
±12
2.7
1.8
1.6
2.8
18
80
1
sn1618 1618fas
UNITS
µmho
MHz
%/V
kHz
mA
V/V
mV
µA
nA
µA
µA
µA
%
V
V
V
V
A