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TPS65921 Datasheet(PDF) 13 Page - Texas Instruments

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Part # TPS65921
Description  Power Management and USB Single Chip
PDF  58 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65921 Datasheet(HTML) 13 Page - Texas Instruments

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TPS65921
www.ti.com
SWCS048F – MARCH 2010 – REVISED MARCH 2012
VAUX2 LOW DROPOUT REGULATOR
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN
Input voltage
2.7
3.6
4.5
V
1.3
1.5
1.7
1.8
Output voltage including all
1.9
variations (line and load
2.0
VOUT
regulations, line and load
–3%
+3%
V
2.1
transients, temperature, and
2.2
process)
2.3
2.4
2.5
2.8
On mode
100
IOUT
Rated output current
mA
Low-power mode
5
DC load regulation
On mode: 0 < IO < IMAX
20
mV
On mode, VIN = VINmin to VINmax
DC line regulation
3
mV
at IOUT = IOUTmax
IOUT = 0, CL = 1 μF (within 10% of
Turn-on time
100
µs
VOUT)
Wake-up time
Full load capability
10
µs
f < 10 kHz
50
10 kHz < f < 100 kHz
40
Ripple rejection
dB
f = 1 MHz
30
VIN = VOUT + 1 V, IO = IMAX
On mode, IOUT = 0
70
On mode, IOUT = IOUTmax
170
Ground current
Low-power mode, IOUT = 0
17
µA
Low-power mode, IOUT = 5 mA
20
Off mode at 55°C
1
VDO
Dropout voltage(1)
On mode, IOUT = IOUTmax
250
mV
ILOAD: IMIN – IMAX
Transient load regulation(2)
–40
40
mV
Slew: 40 mA/
μs
VIN drops 500 mV
Transient line regulation
10
mV
Slew: 40 mV/
μs
Overshoot
Softstart
3%
Default in off mode
250
320
450
Ω
Pulldown resistance
Configurable as HighZ in off mode
100
M
Ω
(1)
For nominal output voltage
(2)
Transient load regulation is always included in the overall accuracy of the selected output voltage option. For voltage levels that have a
tighter output voltage specification than the transient load regulation, follow the output voltage specification.
Copyright © 2010–2012, Texas Instruments Incorporated
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Product Folder Link(s): TPS65921



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