Datasheet

TPS76901-EP
www.ti.com SLVSA53A –NOVEMBER 2009–REVISED DECEMBER 2009
THERMAL CHARACTERISTICS
DERATING FACTOR
BOARD PACKAGE R
θJC
R
θJA
ABOVE T
A
= 25°C
Low K
(1)
DBV 65.8 °C/W 259 °C/W 3.9 mW/°C
High K
(2)
DBV 65.8 °C/W 180 °C/W 5.6 mW/°C
(1) The JEDEC Low K (1s) board design used to derive this data was a 3-inch x 3-inch, two layer board with 2-ounce copper traces on top
of the board.
(2) The JEDEC High K (2s2p) board design used to derive this data was a 3-inch x 3-inch, multilayer board with 1-ounce internal power and
ground planes and 2-ounce copper traces on top and bottom of the board.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
V
I
Input votlage
(1)
5 10 V
V
O
Ouput voltage range 1.2 4.5 V
I
O
Continuous output current
(2)
0 100 mA
T
J
Operating junction temperature –55 150 °C
(1) To calculate the minimum input voltage for your maximum output current, use the following formula:
XXXX V
I
(min) = V
O
(max) + V
DO
(max load).
(2) Continuous output current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that
the device operate under conditions beyond those specified in this table for extended periods of time.
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
T
J
= 25°C V
O
Output voltage
V
O
12. V ≤ V
O
≤ 4.5 V V
(10 μA to 100 mA load)
(1)
T
J
= –55°C to 150°C 0.97V
O
1.03V
O
EN = 0 V,
T
J
= 25°C 17
0 mA < I
O
< 100 mA
Quiescent Current
I
Q
μA
(GND current)
(1) (2)
EN = 4 V,
T
J
= –55°C to 150°C 28
I
O
= 100 mA
T
J
= 25°C 12
EN = 0 V,
Load regulation mV
I
O
= 0 to 100 mA
T
J
= 150°C 13.5
T
J
= 25°C 0.04
Output voltage line regulation
5 V ≤ V
I
≤ 10 V
(1)
%
(ΔV
O
/V
O
)
(2)
T
J
= –55°C to 150°C 0.1
BW = 300 Hz to 50 kHz,
V
N
Output noise voltage T
J
= 25°C 190 μVms
C
O
= 10 μF
T
J
= 25°C 350
Output current limit V
O
= 0 V
(1)
mA
T
J
= –55°C to 150°C 750
T
J
= 25°C 1
I
STDBY
Standby current EN = V
I
, 5 V ≤ V
I
≤ 10 V μA
T
J
= –55°C to 150°C 2.4
I
FB
FB input current FB = 1.18 V T
J
= –55°C to 150°C –1 1 μA
V
IH
High level enable input voltage 5 V ≤ V
I
≤ 10 V T
J
= 25°C 1.7 V
T
J
= 25°C 0.9
V
IL
Low level enable input voltage 5 V ≤ V
I
≤ 10 V V
T
J
= 150°C 0.75
f = 1 kHz,
PSRR Power supply ripple rejection T
J
= 25°C 60 dB
CO = 10 μF
(1)
EN = 0 V –1 0 1
I
IN
Input current T
J
= –55°C to 150°C μA
EN = V
I
–1 1
(1) Minimum IN operating voltage is 5V. Maximum IN voltage 10 V, minimum output current 10 μA, maximum output current 100 mA.
(2) Line Regulation (%) = (Δ V
OUT
) / (Δ V
IN
) x 100
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