TPS717xx
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SBVS068G – FEBRUARY 2006 – REVISED APRIL 2009
ELECTRICAL CHARACTERISTICS
Over operating temperature range (T
J
= –40°C to +125°C), V
IN
= V
OUT(TYP)
+ 0.5V or 2.5V, whichever is greater;
I
OUT
= 0.5mA, V
EN
= V
IN
, C
OUT
= 1.0µF, C
NR
= 0.01µF, unless otherwise noted. For TPS71701, V
OUT
= 2.8V.
Typical values are at T
J
= +25°C.
PARAMETER
V
IN
V
FB
V
OUT
Input voltage range
(1)
TEST CONDITIONS
MIN
2.5
0.790
0.9
0.9
TYP
MAX
6.5
UNIT
V
V
V
V
mV
Internal reference (TPS71701)
Output voltage range (TPS717xx)
Output voltage range (TPS71701)
Output accuracy
Nominal
Over V
IN
, I
OUT
,
Temp
(2)
Over V
IN
, I
OUT
,
Temp
(2)
T
J
= +25°C
V
OUT
+ 0.5V
≤
V
IN
≤
6.5V
0mA
≤
I
OUT
≤
150mA
V
OUT
+ 0.5V
≤
V
IN
≤
6.5V
0mA
≤
I
OUT
≤
150mA
V
OUT(NOM)
+ 0.5V
≤
V
IN
≤
6.5V,
I
OUT
= 5mA
0mA
≤
I
OUT
≤
150mA
(3)
0.800
0.810
5.0
6.5 – V
DO
±2.5
–30
–3.0
125
120
170
200
200
325
325
45
100
0.20
0.90
0.02
1.0
1.5
300
575
575
80
+30
+3.0
V
OUT
Output accuracy
(V
OUT
< 1.0V)
Output accuracy
(V
OUT
≥
1.0V)
mV
%
µV/V
µV/mA
mV
mA
mA
µA
µA
µA
µA
µA
dB
dB
dB
dB
dB
µV
RMS
µV
RMS
µV
RMS
µV
RMS
ms
ms
ΔV
OUT
/
ΔV
IN
ΔV
OUT
/
ΔI
OUT
V
DO
I
CL
(Fixed)
I
CL
(Adjustable)
I
GND
Line regulation
Load regulation
(1)
Dropout voltage
(V
IN
= V
OUT(NOM)
– 0.1V)
Output current limit (fixed output)
Output current limit (TPS71701)
Ground pin current
I
OUT
= 150mA
V
OUT
= 0.9 × V
OUT(NOM)
V
OUT
= 0.9 × V
OUT(NOM)
I
OUT
= 0.1mA
I
OUT
= 150mA
V
EN
≤
0.4V, 2.5V
≤
V
IN
< 4.5V,
T
J
= –40°C to +85°C
V
EN
≤
0.4V, 4.5V
≤
V
IN
≤
6.5V,
T
J
= –40°C to +85°C
f = 100Hz
I
SHDN
Shutdown current
(I
GND
)
Feedback pin current (TPS71701)
I
FB
70
70
67
67
45
95 × V
OUT
25 × V
OUT
12.5 × V
OUT
11.5 × V
OUT
0.700
0.160
1.2
1.25
0
6.5
(4)
6.5
0.4
0.02
2.41
2.45
150
+160
+140
–40
+125
1.0
2.49
PSRR
Power-supply rejection ratio
V
IN
= 3.8V, V
OUT
= 2.8V,
I
OUT
= 150mA
f = 1kHz
f = 10kHz
f = 100kHz
f = 1MHz
V
N
Output noise voltage
BW = 100Hz to 100kHz,
V
IN
= 3.8V, V
OUT
= 2.8V,
I
OUT
= 10mA
Startup time
V
OUT
= 90% V
OUT(NOM)
,
R
L
= 19Ω, C
OUT
= 1.0µF
Enable high (enabled)
Enable low (shutdown)
Enable pin current, enabled
Under-voltage lockout
Hysteresis
Thermal shutdown temperature
Operating junction temperature
C
NR
= none
(fixed output, TPS71701)
C
NR
= 0.001µF
C
NR
= 0.01µF
C
NR
= 0.1µF
0.9V
≤
V
OUT
≤
1.6V, C
NR
= 0.001µF
1.6V < V
OUT
< V
MAX
, C
NR
= 0.01µF
V
IN
≤
5.5V
5.5V < V
IN
≤
6.5V
EN = 6.5V
V
IN
rising
V
IN
falling
Shutdown, temperature increasing
Reset, temperature decreasing
T
STR
V
EN(HI)
V
EN(LO)
I
EN(HI)
UVLO
V
V
V
µA
V
mV
°C
°C
°C
T
SD
T
J
(1)
(2)
(3)
(4)
Minimum V
IN
= V
OUT
+ V
DO
or 2.5V, whichever is greater.
Does not include external resistor tolerances.
V
DO
is not measured for devices with V
OUT(NOM)
< 2.6V because minimum V
IN
= 2.5V.
Maximum V
EN(HI)
= V
IN
+ 0.3 or 6.5V, whichever is smaller.
Copyright © 2006–2009, Texas Instruments Incorporated
3
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