LT1617ES5#TR Linear Technology, LT1617ES5#TR Datasheet - Page 3

• Manufacturer Part Number: LT1617ES5#TR
• Description: IC DC/DC CONV INVERTING TSOT23-5
• Manufacturer: Linear Technology
• Type: Invertingr

Specifications of LT1617ES5#TR

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to -34V
• Current - Output: 350mA
• Voltage - Input: 1.2 ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Frequency - Switching: -

PI FU CTIO S
SW (Pin 1): Switch Pin. This is the collector of the internal
NPN power switch. Minimize the metal trace area con-
nected to this pin to minimize EMI.
GND (Pin 2): Ground. Tie this pin directly to the local
ground plane.
NFB (Pin 3): Feedback Pin. Set the output voltage by
selecting values for R1 and R2 (see Figure 1):
TYPICAL PERFOR A CE CHARACTERISTICS
U
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
550
500
450
400
350
300
250
–50
–50
Switch Saturation Voltage
(V
Switch Off Time
CESAT
–25
–25
U
)
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
V
IN
I
I
SWITCH
SWITCH
= 1.2V
25
U
25
V
IN
= 12V
= 500mA
= 300mA
50
50
W
75
75
1617/-1 G01
1617/-1 G04
U
100
100
–1.25
–1.24
–1.23
–1.22
–1.21
–1.20
400
350
300
250
200
150
100
50
0
–50
–50
Feedback Pin Voltage and
Bias Current
Switch Current Limit
LT1617
LT1617-1
V
–25
IN
–25
= 12V
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
VOLTAGE
V
CURRENT
IN
= 12V
25
25
V
V
IN
IN
SHDN (Pin 4): Shutdown Pin. Tie this pin to 0.9V or higher
to enable the device. Tie below 0.25V to turn off the device.
V
capacitor as close to the device as possible.
= 1.2V
= 1.2V
IN
R
50
50
(Pin 5): Input Supply Pin. Bypass this pin with a
1
75
75
1 23
1617/-1 G02
R
1617/-1 G05
.
V
2
OUT
100
100
5
4
3
2
1
0
2 10
•
1 23
.
LT1617/LT1617-1
25
20
15
10
25
23
21
19
17
15
6
5
0
–50
Quiescent Current
Shutdown Pin Current
0
V
NOT SWITCHING
FB
–25
= 1.23V
SHUTDOWN PIN VOLTAGE (V)
TEMPERATURE ( C)
5
0
25 C
V
IN
= 12V
25
V
IN
100 C
= 1.2V
10
50
75
1617/-1 G06
1617/-1 G03
3
100
15