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4.1.14 Internal LDOs
TPS65950
Integrated Power Management/Audio Codec
www.ti.com
SWCS032 – OCTOBER 2008
Table 4-14. VAUX4 LDO Regulator Characteristics (continued)
Parameter
Test Conditions
Min(1)
Typ(2) Max(3)
Unit
0.679
0.7
0.721
0.97
1.0
1.03
1.164
1.2
1.236
1.261
1.3
1.339
1.455
1.5
1.545
1.746
1.8
1.854
VOUT
Output voltage
On mode and low-power mode
1.795
1.85
1.906
V
2.425
2.5
2.575
2.522
2.6
2.678
2.716
2.8
2.884
2.765
2.85
2.936
2.91
3.0
3.09
3.056
3.15
3.245
On mode
100
IOUT
Rated output current
mA
Low-power mode
5
Dc load regulation
On mode: IOUT = IOUTmax to 0
20
mV
Dc line regulation
On mode, VIN = VINmin to VINmax at IOUT = IOUTmax
3
mV
Turn-on time
IOUT = 0, CL = 1 F (within 10% of VOUT)
100
s
Wake-up time
Full load capability
10
s
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
A
Low-power mode, IOUT = 5 mA
20
Off mode at 55
°C
1
VDO
Dropout voltage
On mode, IOUT = IOUTmax
250
mV
ILoad: IMin – IMax
Transient load regulation
–40
40
mV
Slew: 40 mA/
s
VIN drops 500 mV
Transient line regulation
10
mV
Slew: 40 mV/
s
Table 4-15 lists the regulators that power the device, and the output loads associated with them.
Table 4-15. Output Load Conditions
Regulator
Parameter
Test Conditions
Min(1)
Typ(2)
Max(3)
Unit
VINTDIG LDO
Filtering capacitor
Connected from VINTDIG.OUT to analog
0.3
1
2.7
F
ground
Filtering capacitor ESR
20
600
m
VINTANA1 LDO
Filtering capacitor
Connected from VINTANA1.OUT to
0.3
1
2.7
F
analog ground
Filtering capacitor ESR
20
600
m
VINTANA2 LDO
Filtering capacitor
Connected from VINTANA2.OUT to
0.3
1
2.7
F
analog ground
Filtering capacitor ESR
20
600
m
VRUSB_3V1 LDO Filtering capacitor
Connected from VUSB.3P1 to GND
0.3
1
2.7
F
Filtering capacitor ESR
0
10
600
m
VRUSB_1V8 LDO Filtering capacitor
Connected from VINTUSB1P8.OUT to
0.3
1
2.7
F
GND
Filtering capacitor ESR
0
10
600
m
(1)
Min = Minimum value
(2)
Typ = Typical value
(3)
Max = Maximum value
Power Module
55