TPS2148
TPS2158
SLVS373 – AUGUST 2001
electrical characteristics over recommended operating junction-temperature range,
2.9 V ≤ V ≤ 5.5 V, V = 0 V, V = 5 V, C = 10 µF,
I(VIN/SWIN1)
I(ENx)
I(LDO_EN)
L(LDO_OUT)
T = –40°C to 100°C (unless otherwise noted)
J
3.3 V LDO
†
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
I
= 4.25 V to 5.25 V,
= 0.5 mA to 200 mA
I(VIN/SWIN1)
O(LDO_OUT)
V
O
Output voltage, dc
3.20
3.3
3.40
V
V
= 3.2 V, I = 200 mA, I
= 150
O(OUT)
I(VIN/SWIN1)
mA
O
Dropout voltage
0.35
0.1
V
V
= 4.25 V to 5.25 V, I
= 5
I(VIN/SWIN1)
mA
O(LDO_OUT)
Line regulation voltage (see Note 1)
Load regulation voltage (see Note 1)
Short-circuit current limit
%/V
V
=4.25V,I
=5mAto200
I(VIN/SWIN1)
mA
O(LDO_OUT)
0.4
0.33
10
1%
V
= 4.25 V, LDO_OUT connected to
I(VIN/SWIN1)
GND
I
I
0.275
0.55
A
OS
V
V
= 3.3 V, V
= 5.5 V, V
= 0 V,
O(LDO_OUT)
I(LDO_EN)
I(VIN/SWIN1)
I(VIN/SWIN1)
µA
µA
= 0 V
Reverse leakage current into
LDO_OUT
lkg(R)
V
V
= 2.7 V,
O(LDO_OUT)
I(LDO_EN)
10
= 0 V
f = 1 kHz, C
= 4.7µF, ESR = 0.25 Ω, I =
O
L(LDO_OUT)
Power supply rejection
50
dB
ms
ms
ms
5 mA, V
= 100 mV
I(VIN/SWIN1)p–p
Turnoff time, LDO_EN
transitioning low (see Note 1)
t
t
R
R
= 16 Ω, C
= 10 µF
= 10 µF
0.25
0.1
1
1
1
on
L
L
L(LDO_OUT)
L(LDO_OUT)
Turnon time, LDO_EN
transitioning high (see Note 1)
= 16 Ω, C
off
V
= 5 V, VIN ramping up from 10% to 90%
I(LDO_EN)
in 0.1 ms, R = 16 Ω, C
Ramp-up time, LDO_OUT (0% to 90%)
0.1
= 10 µF
L(LDO_OUT)
L
†
Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately.
NOTE 1. Specified by design, not tested in production.
5
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