Datasheet

0.9
1.0
1.1
1.2
1.3
1.4
−40 −25 −10 5 20 35 50 65 80 95 110 125
Temperature (°C)
Shutdown Current (µA)
V
IN
= 12 V
3.10
3.12
3.14
3.16
3.18
3.20
3.22
3.24
3.26
3.28
−40 −25 −10 5 20 35 50 65 80 95 110 125
Junction Temperature (°C)
Operating Current (mA)
V
IN
= 12 V
f
SW
= 300 kHz
280
282
284
286
288
290
292
294
296
298
300
302
−40 −25 −10 5 20 35 50 65 80 95 110 125
Junction Temperature (°C)
Switching Frequency (kHz)
V
IN
= 4.5 V
V
IN
= 24 V
V
IN
= 60 V
f
SW
= 300 kHz
554
558
562
566
570
574
578
582
586
590
594
598
602
606
−40 −25 −10 5 20 35 50 65 80 95 110 125
Junction Temperature (°C)
Switching Frequency (kHz)
V
IN
= 4.5 V
V
IN
= 24 V
V
IN
= 60 V
f
SW
= 600 kHz
598.5
598.8
599.0
599.2
599.5
599.8
600.0
−40 −25 −10 5 20 35 50 65 80 95 110 125
Temperature (°C)
Reference Voltage (mV)
95.0
95.5
96.0
96.5
97.0
97.5
98.0
98.5
99.0
99.5
100.0
−40 −25 −10 5 20 35 50 65 80 95 110 125
Junction Temperature (°C)
Switching Frequency (kHz)
V
IN
= 4.5 V
V
IN
= 24 V
V
IN
= 60 V
f
SW
= 100 kHz
TPS40170
www.ti.com SLUS970A –MARCH 2011–REVISED NOVEMBER 2013
TYPICAL CHARACTERISTICS
Figure 1. Reference Voltage vs. Junction Temperature Figure 2. Switching Frequency vs. Junction Temperature
(f
SW
= 100 kHz)
Figure 3. Switching Frequency vs. Junction Temperature Figure 4. Switching Frequency vs. Junction Temperature
(f
SW
= 300 kHz) (f
SW
= 600 kHz)
Figure 5. Shutdown Current vs. Junction Temperature Figure 6. Operating Current vs. Junction Temperature
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