Datasheet
ELECTRICAL CHARACTERISTICS
TPS73601-EP , TPS73615-EP , TPS73618-EP
TPS73625-EP , TPS73630-EP , TPS73632-EP , TPS73633-EP
www.ti.com
.................................................................................................................................................. SGLS326C – APRIL 2006 – REVISED FEBRUARY 2009
over operating temperature range (T
A
= – 55 ° C to 125 ° C), V
IN
= V
OUT(nom)
+ 0.5 V
(1)
, I
OUT
= 10 mA, V
EN
= 1.7 V, and
C
OUT
= 0.1 µ F (unless otherwise noted). Typical values are at T
J
= 25 ° C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage range
(1) (2)
1.7 5.5 V
V
FB
Internal reference (TPS73601) T
J
= 25 ° C 1.198 1.2 1.21 V
Output voltage range 5.5 –
V
FB
V
(TPS73601) V
DO
V
OUT
Nominal T
J
= 25 ° C – 0.5% 0.5%
Accuracy
(1)
Over V
IN
, I
OUT
, V
OUT
+ 0.5 V ≤ V
IN
≤ 5.5 V,
– 1% ± 0.5% 1%
and T 10 mA ≤ I
OUT
≤ 400 mA
Δ V
OUT
%/ Δ V
IN
Line regulation
(1)
V
O(nom)
+ 0.5 V ≤ V
IN
≤ 5.5 V 0.01 %/V
1 mA ≤ I
OUT
≤ 400 mA 0.002
Δ V
OUT
%/ Δ I
OUT
Load regulation %/mA
10 mA ≤ I
OUT
≤ 400 mA 0.0005
Dropout voltage
(3)
V
DO
I
OUT
= 400 mA 75 200 mV
(V
IN
= V
OUT(nom)
– 0.1 V)
Z
O
(DO) Output impedance in dropout 1.7 V ≤ V
IN
≤ V
OUT
+ V
DO
0.25 Ω
I
CL
Output current limit V
OUT
= 0.9 × V
OUT(nom)
400 650 800 mA
I
SC
Short-circuit current V
OUT
= 0 V 450 mA
I
REV
Reverse leakage current
(4)
( – I
IN
) V
EN
≤ 0.5 V, 0 V ≤ V
IN
≤ V
OUT
0.1 15 µ A
I
OUT
= 10 mA (I
Q
) 400 550
I
GND
Ground-pin current µ A
I
OUT
= 400 mA 800 1000
I
SHDN
Shutdown current (I
GND
) V
EN
≤ 0.5 V, V
OUT
≤ V
IN
≤ 5.5 V 0.02 1 µ A
I
FB
FB pin current (TPS73601) 0.1 0.45 µ A
f = 100 Hz, I
OUT
= 400 mA 58
Power-supply rejection ratio
PSRR dB
(ripple rejection)
f = 10 kHz, I
OUT
= 400 mA 37
C
OUT
= 10 µ F, No C
NR
27 × V
OUT
Output noise voltage
V
N
µ V
RMS
BW = 10 Hz to 100 kHz
C
OUT
= 10 µ F, C
NR
= 0.01 µ F 8.5 × V
OUT
V
OUT
= 3 V, R
L
= 30 Ω , C
OUT
= 1 µ F,
t
STR
Startup time 600 µ s
C
NR
= 0.01 µ F
V
EN
(HI) Enable high (enabled) 1.7 V
IN
V
V
EN
(LO) Enable low (shutdown) 0 0.5 V
I
EN
(HI) Enable pin current (enabled) V
EN
= 5.5 V 0.02 0.1 µ A
Shutdown, temperature increasing 160
T
SD
Thermal shutdown temperature ° C
Reset, temperature decreasing 140
T
A
Operating ambient temperature -55 125 ° C
(1) Minimum V
IN
= V
OUT
+ V
DO
or 1.7 V, whichever is greater.
(2) For V
OUT(nom)
< 1.6 V, when V
IN
≤ 1.6 V, the output locks to V
IN
and may result in a damaging over-voltage level on the output. To avoid
this situation, disable the device before powering down the V
IN
.
(3) V
DO
is not measured for the TPS73615 (V
OUT(nom)
= 1.5 V) since minimum V
IN
= 1.7 V.
(4) See the Applications section for more information.
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