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TPS22949AYZPR Datasheet(PDF) 7 Page - Texas Instruments

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No. de pieza TPS22949AYZPR
Descripción Electrónicos  CURRENT-LIMITED LOAD SWITCH WITH LOW NOISE REGULATION CAPABILITY
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS22949AYZPR Datasheet(HTML) 7 Page - Texas Instruments

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TPS22949
TPS22949A
www.ti.com
SLVS908C – FEBRUARY 2009 – REVISED JANUARY 2010
LOW-NOISE LDO REGULATOR ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOUTLDO
Output voltage(1)
1.76
1.8
1.84
V
VIN line regulation
VIN = VOUTLDO + 0.5 V to 4.5 V, IOUT = 1 mA
±0.1
%/V
ΔVOUTLDO/ΔVIN
VIN line transient
ΔVIN = 400 mV, tr = tf = 1 μs
±2
mV
VIN = VOUTLDO + 1.4 V or 2.5 V, whichever is > 5.5 V,
V+ line regulation
±0.1
%/V
IOUT = 1 mA
ΔVOUTLDO/ΔV+
V+ line transient
ΔVIN = 600 mV, tr = tf = 1 μs
±5
mV
Load regulation
IOUT2 = 0 to 100 mA (no load to full load)
±0.01
%/V
ΔVOUTLDO/ΔIOUT2
Load transient
IOUT2 = 0 to 100 mA, tr = tf = 1 μs
±35
mV
Dropout voltage
VIN = VOUTLDO(NOM) – 0.1 V, V+ – VOUTLDO(NOM) = 1.4 V,
VDO
110
200
mV
(VDO = VIN – VOUTLDO)
IOUT = 100 mA
f = 10 Hz
75
f = 100 Hz
75
VOUTCL – VOUTLDO ≥ 0.5 V,
f = 1 kHz
80
Power-supply
VIN PSRR
V+ = VOUTLDO + 1.4 V,
dB
rejection ratio
f = 10 kHz
80
IOUT = 100 mA,
f = 100 kHz
85
f = 1 MHz
85
f = 10 Hz
80
f = 100 Hz
80
VOUTCL – VOUTLDO ≥ 0.5 V,
f = 1 kHz
75
Power-supply
V+ PSRR
V+ = VOUTLDO + 1.4 V,
dB
rejection ratio
f = 10 kHz
65
IOUT = 100 mA,
f = 100 kHz
55
f = 1 MHz
35
V+ ≥2.5 V,
VN
Output noise voltage
BW = 10 Hz to 100 kHz
50
μVrms
VOUTLDO = VOUTCL + 0.5 V
VOUT = 95%,
tSTR
Startup time
130
250
μs
VOUT(NOM), IOUT = 100 mA, COUT = 2.2 μF
Undervoltage lockout
V+ rising
2.3
2.45
2.55
V
UVLO-V+
Hysteresis
V+ falling
150
mV
(1)
LDO output voltage is fixed at 1.8 V. However, output voltages from 0.9 V to 3.6 V in 50 mV increments are available through the use of
innovative factory EEPROM programming; minimum order quantities may apply. Contact factory for details and availability.
Copyright © 2009–2010, Texas Instruments Incorporated
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Product Folder Link(s): TPS22949 TPS22949A


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