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TPS65920BZCH Datasheet(PDF) 47 Page - Texas Instruments

No. de pieza TPS65920BZCH
Descripción Electrónicos  Integrated Power Management Audio Codec (TPS65930 Only)
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS65920BZCH Datasheet(HTML) 47 Page - Texas Instruments

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4.4
Power Consumption
TPS65930/TPS65920
Integrated Power Management
\Audio Codec (TPS65930 Only)
www.ti.com
SWCS037D – MAY 2008 – REVISED JUNE 2009
Table 4-14. VRRTC LDO Regulator Characteristics (continued)
Parameter
Test Conditions
Min
Typ
Max
Unit
IOUT
Rated output current
On mode
30
mA
Sleep mode
1
DC load regulation
On mode: IOUT = IOUTmax to 0
100
mV
DC line regulation
On mode, VIN = VINmin to VINmax at IOUT = IOUTmax
100
mV
Turn-on time
IOUT = 0, at VOUT = VOUTfinal ± 3%
100
µs
Wake-up time
On mode from low power to On mode, IOUT = 0, at
100
µs
VOUT = VOUTfinal ± 3%
From backup to On mode, IOUT = 0, at VOUT =
100
VOUTfinal ± 3%
Ripple rejection (VRRTC)
f < 10 kHz
50
dB
10 kHz < f < 100 kHz
40
f = 1 MHz
30
VIN = VOUT + 1 V, IO = IMAX
Ground current
On mode, IOUT = 0
70
µA
On mode, IOUT = IOUTmax
100
Sleep mode, IOUT = 0
10
Sleep mode, IOUT = 1 mA
11
Off mode
1
VDO
Dropout voltage(1)
On mode, IOUT = IOUTmax
250
mV
Transient load regulation
ILOAD: IMIN – IMAX
–40
40
mV
Slew: 40 mA/
µs
Transient line regulation
VIN drops 500 mV
10
mV
Slew: 40 mV/
µs
Overshoot
Softstart
3%
Pull down resistance
Default in off mode
250
320
450
(1)
For nominal output voltage
Table 4-15 describes the power consumption depending on the use cases.
NOTE
Typical power consumption is obtained in the nominal operating conditions and with the
TPS65920 and TPS65930 devices in stand-alone configuration.
Table 4-15. Power Consumption
Mode
Description
Typical Consumption
Only the RTC date is maintained with a couple of registers in the backup
Backup
domain. No main source is connected. Consumption is on the backup
VBAT not present
2.25 * 3.2 = 7.2
µW
battery.
The phone is apparently off for the user, a main battery is present and
well-charged. The RTC registers and registers in the backup domain are
Wait on
VBAT = 3.8 V
64
× 3.8 = 243.2 µW
maintained. The wake-up capabilities (such as the PWRON button) are
available.
The subsystem is powered by the main battery, all supplies are enabled
Active no load
with full current capability, internal reset is released, and the associated
VBAT = 3.8 V
3291
× 3.8 = 12505 µW
processor is running.
The main battery powers the subsystem, selected supplies are enabled but
Sleep no load
in low-consumption mode, and the associated processor is in low-power
VBAT = 3.8 V
496
× 3.8 = 1884.4 µW
mode.
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