Datasheet
TPS7101Q, TPS7133Q, TPS7148Q, TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092G – NOVEMBER 1994 – REVISED JANUARY 2003
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7101 electrical characteristics at I
O
= 10 mA, V
I
= 3.5 V, EN = 0 V, C
O
= 4.7 µF/CSR
†
= 1 Ω, FB
shorted to OUT at device leads (unless otherwise noted)
PARAMETER
TEST CONDITIONS
‡
T
J
TPS7101Q
UNIT
PARAMETER
TEST
CONDITIONS
‡
T
J
MIN TYP MAX
UNIT
Reference voltage (measured at FB
V
I
= 3.5 V, I
O
= 10 mA 25°C 1.178 V
Reference
voltage
(measured
at
FB
with OUT connected to FB)
2.5 V ≤ V
I
≤ 10 V,
See Note 1
5 mA ≤ I
O
≤ 500 mA,
–40°C to 125°C 1.143 1.213 V
Reference voltage temperature
coefficient
–40°C to 125°C 61 75 ppm/°C
V
I
=24V
50 µA ≤ I
O
≤ 150 mA
25°C 0.7 1
V
I
=
2
.
4
V
,
50
µ
A
≤
I
O
≤
150
mA
–40°C to 125°C 1
V
I
=24V
150 mA ≤ I
O
≤ 500
25°C 0.83 1.3
Pass-element series resistance
V
I
=
2
.
4
V
,
O
mA
–40°C to 125°C
1.3
Ω
(see Note 2)
V
I
=29V
50 µA ≤ I
O
≤ 500 mA
25°C 0.52 0.85
Ω
V
I
=
2
.
9
V
,
50
µ
A
≤
I
O
≤
500
mA
–40°C to 125°C 0.85
V
I
= 3.9 V, 50 µA ≤ I
O
≤ 500 mA 25°C 0.32
V
I
= 5.9 V, 50 µA ≤ I
O
≤ 500 mA 25°C 0.23
In
p
ut regulation
V
I
= 2.5 V to 10 V, 50
µ
A ≤ I
O
≤ 500 mA,
25°C 18
mV
Input
regulation
I
,
See Note 1
µ
O
,
–40°C to 125°C 25
mV
I
O
= 5 mA to 500 mA, 2.5 V ≤ V
I
≤ 10 V,
25°C 14
mV
Out
p
ut regulation
O
,
See Note 1
I
,
–40°C to 125°C 25
mV
Output
regulation
I
O
= 50
µ
A to 500 mA, 2.5 V ≤ V
I
≤ 10 V,
25°C 22
mV
O
µ ,
See Note 1
I
,
–40°C to 125°C 54
mV
I
O
=50µA
25°C 48 59
Ri
pp
le rejection
f = 120 Hz
I
O
=
50
µ
A
–40°C to 125°C 44
dB
Ripple
rejection
f
=
120
Hz
I
O
= 500 mA,
25°C 45 54
dB
O
,
See Note 1
–40°C to 125°C 44
Output noise-spectral density f = 120 Hz 25°C 2
µV/√Hz
10 H ≤ f ≤ 100 kH
C
O
= 4.7 µF 25°C 95
Output noise voltage
10 Hz ≤ f ≤ 100 kHz,
CSR
†
=1Ω
C
O
= 10 µF 25°C 89
µVrms
CSR
†
=
1
Ω
C
O
= 100 µF 25°C 74
PG trip-threshold voltage
§
V
FB
voltage decreasing from above V
PG
–40°C to 125°C 1.101 1.145 V
PG hysteresis voltage
§
Measured at V
FB
25°C 12 mV
PG out
p
ut low voltage
§
I
PG
= 400 µA
V
I
= 2 13 V
25°C 0.1 0.4
V
PG
ou
t
pu
t
l
ow vo
lt
age
§
I
PG
=
400
µ
A
,
V
I
=
2
.
13
V
–40°C to 125°C 0.4
V
FB in
p
ut current
25°C –10 0.1 10
nA
FB
input
current
–40°C to 125°C –20 20
nA
†
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.
§
Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
NOTES: 1. When V
I
< 2.9 V and I
O
> 150 mA simultaneously, pass element r
DS(on)
increases (see Figure 27) to a point such that the resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
2. To calculate dropout voltage, use equation:
V
DO
= I
O
⋅ r
DS(on)
r
DS(on)
is a function of both output current and input voltage. The parametric table lists r
DS(on)
for V
I
= 2.4 V, 2.9 V, 3.9 V, and
5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V, and 6 V, respectively. For other
programmed values, refer to Figure 26.