Datasheet

TPS7A16
www.ti.com SBVS171D –DECEMBER 2011–REVISED JANUARY 2014
ELECTRICAL CHARACTERISTICS
At T
J
= –40°C to +125°C, V
IN
= V
OUT(NOM)
+ 0.5 V or V
IN
= 3.0 V (whichever is greater), V
EN
= V
IN
, I
OUT
= 10 µA, C
IN
= 1 μF, C
OUT
= 2.2 μF,
and FB tied to OUT, unless otherwise noted.
TPS7A1601
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage range 3 60 V
V
REF
Internal reference T
J
= +25°C, V
FB
= V
REF
, V
IN
= 3 V, I
OUT
= 10 μA 1.169 1.193 1.217 V
V
UVLO
Undervoltage lockout threshold 2.7 V
Output voltage range V
IN
≥ V
OUT(NOM)
+ 0.5 V V
REF
18.5 V
Nominal accuracy T
J
= +25°C, V
IN
= 3 V, I
OUT
= 10 μA –2.0% +2.0% V
OUT
V
OUT
V
OUT(NOM)
+ 0.5 V ≤ V
IN
≤ 60 V
(1)
Overall accuracy –2.0% +2.0% V
OUT
10 µA ≤ I
OUT
≤ 100 mA
ΔV
O(ΔVI)
Line regulation 3 V ≤ V
IN
≤ 60 V ±1.0% V
OUT
ΔV
O(ΔIO)
Load regulation 10 µA ≤ I
OUT
≤ 100 mA ±1.0% V
OUT
V
IN
= 4.5 V, V
OUT(NOM)
= 5 V, I
OUT
= 20 mA 60 mV
V
DO
Dropout voltage
V
IN
= 4.5 V, V
OUT(NOM)
= 5 V, I
OUT
= 100 mA 265 500 mV
I
LIM
Current limit V
OUT
= 90% V
OUT(NOM)
, V
IN
= 3.0 V 101 225 400 mA
3 V ≤ V
IN
≤ 60 V, I
OUT
= 10 µA 5.0 15 μA
I
GND
Ground current
I
OUT
= 100 mA 5.0 μA
I
SHDN
Shutdown supply current V
EN
= +0.4 V 0.59 5.0 μA
I
FB
Feedback current
(2)
–0.1 –0.01 0.1 µA
I
EN
Enable current 3 V ≤ V
IN
≤ 12 V, V
IN
= V
EN
–1.0 –0.01 1.0 μA
V
EN_HI
Enable high-level voltage 1.2 V
V
EN_LO
Enable low- level voltage 0.3 V
OUT pin floating, V
FB
increasing, V
IN
≥ V
IN_MIN
85% 95% V
OUT
V
IT
PG trip threshold
OUT pin floating, V
FB
decreasing, V
IN
≥ V
IN_MIN
83% 93% V
OUT
V
HYS
PG trip hysteresis 2.3% 4% V
OUT
V
PG, LO
PG output low voltage OUT pin floating, V
FB
= 80% V
REF
, I
PG
= 1mA 0.4 V
I
PG, LKG
PG leakage current V
PG
= V
OUT(NOM)
–1.0 1.0 μA
I
DELAY
DELAY pin current 1.0 2.0 μA
V
IN
= 3 V, V
OUT(NOM)
= V
REF
, C
OUT
= 10 μF,
PSRR Power-supply rejection ratio 50 dB
f = 100 Hz
Shutdown, temperature increasing +170 °C
T
SD
Thermal shutdown temperature
Reset, temperature decreasing +150 °C
Operating junction temperature
T
J
–40 +125 °C
range
(1) Maximum input voltage is limited to 24 V because of the package power dissipation limitations at full load (P ≈ (V
IN
– V
OUT
) × I
OUT
=
(24 V – V
REF
) × 50 mA ≈ 1.14 W). The device is capable of sourcing a maximum current of 50 mA at higher input voltages as long as
the power dissipated is within the thermal limits of the package plus any external heatsinking.
(2) I
FB
> 0 flows out of the device.
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