Datasheet

TPS62110-HT
www.ti.com SLVSAO9B –DECEMBER 2010– REVISED FEBRUARY 2011
ELECTRICAL CHARACTERISTICS (continued)
V
I
= 12 V, V
O
= 3.3 V, I
O
= 600 mA, EN = V
I
T
A
= -55°C to 125°C T
A
= 175°C
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX MIN TYP MAX
OSCILLATOR
f
S
Oscillator frequency 900 1000 1100 900 1000 1100 kHz
f
(SYNC)
Synchronization range CMOS-logic clock signal on SYNC pin 800 1410 800 1410 kHz
SYNC high-level input
V
IH
1.5 1.5 V
voltage
SYNC low-level input
V
IL
0.3 0.3 V
voltage
I
lkg
SYNC input leakage current SYNC = GND or VIN 0.01 0.2 0.07 0.2 μA
SYNC trip-point hysteresis 170 170 mV
SYNC input current 0.6 V ≤ V
(SYNC)
≤ 4 V 10 20 5 20 µA
Duty cycle of external clock
30 90 30 90 %
signal
OUTPUT
Adjustable output voltage
V
O
1.153 16 1.153 16 V
range
V
FB
Feedback voltage 1.153 1.153 V
FB leakage current 10 100 290 2100 nA
Feedback voltage tolerance V
I
= 3.1 V to 17 V,
–6 7.5 –7 8 %
(3)
0 mA < I
O
< 1500 mA
(4)
V
I
≥ 3 V (once undervoltage lockout voltage
100 100
exceeded)
V
I
≥ 3.5 V 500 500
I
O
Maximum output current mA
V
I
≥ 4.3 V 1200 1100
V
I
≥ 6 V 1500 1500
Current into internal voltage
divider for fixed voltage 5 5 μA
versions
V
I
= 7.2 V, V
O
= 3.3 V, I
O
= 600 mA 92 82
η Efficiency %
V
I
= 12 V, V
O
= 5 V, I
O
= 600 mA 92 82
Duty cycle range for main
at 1 MHz 10 100 10 100 %
switches
(3)
Minimum t
on
time for main
100 100 ns
switch
Start-up time I
O
= 800 mA, V
I
= 12 V, V
O
= 3.3 V 1 ms
(3) Not production tested
(4) The maximum output current depends on the input voltage. See the maximum output current for further restrictions on the minimum
input voltage.
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