Datasheet

TPS7201Q, TPS7225Q, TPS7230Q
TPS7233Q, TPS7248Q, TPS7250Q, TPS72xxY
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS102G – MARCH 1995 – REVISED JUNE 2000
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics, I
O
= 10 mA, EN = 0 V, C
O
= 4.7 µF (CSR
†
= 1 Ω), T
J
= 25°C, FB shorted to
OUT at device leads (unless otherwise noted)
PARAMETER
TEST CONDITIONS
‡
TPS7225Y
UNIT
PARAMETER
TEST
CONDITIONS
‡
MIN TYP MAX
UNIT
Output voltage V
I
= 3.5 V, I
O
= 10 mA 2.5 V
Dropout voltage
V
I
= 2.97 V, I
O
= 250 mA 560 mV
Pass-element series resistance
(2.97 V – V
O
)/I
O
,
I
O
= 250 mA
V
I
= 2.97 V,
2.24 Ω
Input regulation V
I
= 3.5 V to 10 V, 50 µA ≤ I
O
≤ 250 mA 9 mV
Out
p
ut regulation
3.5 V ≤ V
I
≤ 10 V I
O
= 5 mA to 250 mA 28
mV
O
u
tp
u
t
reg
u
lation
3.5 V ≤ V
I
≤ 10 V I
O
= 50 µA to 250 mA 24
mV
Ri
pp
le rejection
V
I
= 3.5 V,
I
O
= 50 µA 58
dB
Ripple
rejection
I
,
f = 120 Hz
I
O
= 250 mA 46
dB
Output noise spectral density V
I
= 3.5 V, f = 120 Hz 2 µV/√Hz
V
I
=
3.5 V,
C
O
= 4.7 µF
248
Output noise voltage
V
I
=
3
.
5
V
,
10 Hz ≤ f ≤ 100 kHz,
CSR
†
C
O
= 10 µF
200
µVrms
CSR
†
= 1 Ω
C
O
= 100 µF
130
PG hysteresis voltage V
I
= 3.5 V
50 mV
PG output low voltage
V
I
= 2.13 V I
PG
= 1.2 mA 0.3 V
†
CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to C
O
.
‡
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.