LT3483 Linear Technology, LT3483 Datasheet - Page 3

• Manufacturer Part Number: LT3483
• Description: Inverting Micropower DC/DC Converter
• Manufacturer: Linear Technology

PI FU CTIO S
SW: Switch. Connect to external inductor L1 and positive
terminal of transfer capacitor.
GND: Ground.
FB: Feedback. Place resistor to negative output here. Set
resistor value R1 = V
SHDN: Shutdown. Connect to GND to turn device off.
Connect to supply to turn device on.
TYPICAL PERFOR A CE CHARACTERISTICS
10.2
10.1
10.0
230
220
210
200
190
180
170
9.9
9.8
U
–50
–50
V
Switch Current Limit
FB
Current
U
–20
–20
TEMPERATURE (°C)
TEMPERATURE (°C)
10
10
U
OUT
40
40
/10µA.
W
70
70
3483 G04
3483 G01
U
100
100
12
50
40
20
10
30
3
0
9
6
0
–50
–50
V
Quiescent Current
FB
NOT SWITCHING
V
FB
Voltage
= –0.05V
–20
–20
TEMPERATURE (°C)
TEMPERATURE (°C)
10
10
D: Anode Terminal of Integrated Schottky Diode. Con-
nect to negative terminal of transfer capacitor and exter-
nal inductor L2 (flyback configuration) or to cathode of
external Schottky diode (inverting charge pump
configuration).
V
greater.
IN
40
40
: Input Supply. Must be locally bypassed with 1µF or
70
70
3483 G02
3483 G05
100
100
200
100
400
350
300
250
150
50
10
0
8
6
4
2
0
–50
0
Switch Off Time
SHDN Pin Bias Current
T
A
= 25°C
–20
4
SHDN PIN VOLTAGE (V)
TEMPERATURE (°C)
10
8
40
LT3483
12
70
3483 G06
3483 G03
3
3483f
100
16