TPS72011 Datasheet, PDF (4/25 Pages) Texas Instruments – 350mA, Ultra-Low VIN, RF Low-Dropout Linear Regulator with Bias Pin

TPS720xx
SBVS100D – JUNE 2008 – REVISED AUGUST 2009........................................................................................................................................................ www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Over operating temperature range (T_J = –40°C to +125°C), V_BIAS = (V_OUT + 1.4V) or 2.5V (whichever is greater); V_IN ≥ V_OUT +
0.5V, I_OUT = 1mA, V_EN = 1.1V, C_OUT = 2.2µF, unless otherwise noted. Typical values are at T_J = +25°C.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
f = 10Hz
80
dB
PSRR
V_IN – V_OUT ≥ 0.5V,
V_BIAS power-supply rejection ratio V_BIAS = V_OUT + 1.4V,
I_OUT = 350mA
f = 100Hz
f = 1kHz
f = 10kHz
f = 100kHz
80
dB
75
dB
65
dB
55
dB
f = 1MHz
35
dB
V_N
Output noise voltage
I_{VIN_INRUSH} Inrush current on V_IN
t_STR
V_EN(HI)
V_EN(LO)
I_EN
UVLO
Startup time
Enable pin high (enabled)
Enable pin low (disabled)
Enable pin current
Undervoltage lockout
Hysteresis
T_SD
Thermal shutdown temperature
BW = 10Hz to 100kHz, V_BIAS ≥ 2.5V,
V_IN = V_OUT + 0.5V
V_BIAS = (V_OUT +1.4V) or 2.5V (whichever is
greater), V_IN = V_OUT + 0.5V
V_OUT = 95% V_OUT(NOM), I_OUT = 350mA,
C_OUT = 2.2µF
V_EN = 5.5V, V_IN = 4.5V, V_BIAS = 5.5V
V_BIAS rising
V_BIAS falling
Shutdown, temperature increasing
Reset, temperature decreasing
48
100 +
I_LOAD
140
1.1
0
2.41 2.45
150
+160
+140
µV_RMS
mA
µs
V
0.4
V
1.0 µA
2.49
V
mV
°C
°C
T_J
Operating junction temperature
–40
+125 °C
4
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