Datasheet

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ELECTRICAL CHARACTERISTICS
TPS72301
TPS72325
SLVS346B – SEPTEMBER 2003 – REVISED JULY 2007
Over operating junction temperature range, V
IN
= V
OUTnom
– 0.5V, I
OUT
= 1mA, V
EN
= 1.5V, C
OUT
= 2.2 μ F, and C
NR
= 0.01 μ F,
unless otherwise noted. Typical values are at T
J
= +25 ° C.
TPS723xx
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
V
IN
Input voltage range
(1)
–10 –2.7 V
V
FB
Feedback reference voltage TPS72301 T
J
= +25 ° C –1.210 –1.186 –1.162 V
Output voltage range TPS72301 –10 + V
DO
V
FB
V
Nominal T
J
= +25 ° C –1 1 %
TPS72325 vs
V
OUT
–2 ± 1 2 %
Accuracy V
IN
/I
OUT
/T
–10V ≤ V
IN
≤ V
OUT
– 0.5V,
10 μ A ≤ I
OUT
≤ 200mA
TPS72301 vs
–3 ± 1 3 %
V
IN
/I
OUT
/T
V
OUT
%/V
IN
Line regulation –10V ≤ V
IN
≤ V
OUT(nom)
– 0.5V 0.04 %/V
V
OUT
%/I
OUT
Load regulation 0mA ≤ I
OUT
≤ 200mA 0.002 %/mA
Dropout voltage at
V
DO
TPS72325 I
OUT
= 200mA 280 500 mV
V
OUT
= 0.96 × V
OUTnom
I
CL
Current limit V
OUT
= 0.85 × V
OUT(nom)
300 550 800 mA
I
OUT
= 0mA (I
Q
),
130 200
–10V ≤ V
IN
≤ V
OUT
– 0.5V
I
GND
Ground pin current μ A
I
OUT
= 200mA,
350 500
–10V ≤ V
IN
≤ V
OUT
– 0.5V
–0.4V ≤ V
EN
≤ 0.4V,
I
SHDN
Shutdown ground pin current 0.1 2.0 μ A
–10V ≤ V
IN
≤ V
OUT
– 0.5V
I
FB
Feedback pin current –10V ≤ V
IN
≤ V
OUT
– 0.5V 0.05 1.0 μ A
I
OUT
= 200mA, 1kHz,
65
C
IN
= C
OUT
= 10 μ F
PSRR Power-supply rejection ratio TPS72325 dB
I
OUT
= 200mA, 10kHz,
48
C
IN
= C
OUT
= 10 μ F
C
OUT
= 10 μ F, 10Hz to 100kHz,
V
n
Output noise voltage TPS72325 60 μ V
RMS
I
OUT
= 200mA
V
OUT
= –2.5V, C
OUT
= 1 μ F,
t
STR
Startup time 1 ms
R
L
= 25 Ω
V
EN(HI)
Enable threshold positive 1.5 V
V
EN(LO)
Enable threshold negative –1.5 V
V
DIS(HI)
Disable threshold positive 0.4 V
V
DIS(LO)
Disable threshold negative –0.4 V
–10V ≤ V
IN
≤ V
OUT
– 0.5V,
I
EN
Enable pin current 0.1 2.0 μ A
–10V ≤ V
EN
≤ ± 3.5V
Shutdown, temperature increasing +165
T
SD
Thermal shutdown temperature ° C
Reset, temperature decreasing +145
T
J
Operating junction temperature –40 +125 ° C
(1) Maximum V
IN
= (V
OUT
– V
DO
) or – 2.7V, whichever is more negative.
3
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