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參數資料
型號： TPS65950ZXNR
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA209
封裝： 7 X 7 MM, 0.40 MM PITCH, PLASTIC, BGA-209
文件頁數： 112/167頁
文件大?。?/td> 2566K
代理商： TPS65950ZXNR
4.1.7
VMMC1 LDO Regulator
TPS65950
Integrated Power Management/Audio Codec
www.ti.com
SWCS032 – OCTOBER 2008
Table 4-7. VPLL2 LDO Regulator Characteristics (continued)
Parameter
Test Conditions
Min(1)
Typ(2) Max(3)
Unit
0.672
0.7
0.728
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
3.05
3.15
3.245
On mode
100
IOUT
Rated output current
mA
Low-power mode
5
Dc load regulation
On mode: 0 < IO < IMax
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
160
Ground current
Low-power mode, IOUT = 0
17
A
Low-power mode, IOUT = 1 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
The VMMC1 LDO regulator is a programmable linear voltage converter that powers the multimedia
channel (MMC) slot. It includes a discharge resistor and overcurrent protection (short circuit). This LDO
regulator can also be turned off automatically when MMC card extraction is detected. The VMMC1 LDO
can be powered through an independent supply other than the battery; for example, a CP. In this case,
the input from the VMMC1 LDO can be higher than the battery voltage. Table 4-8 lists the characteristics
of the regulator.
Table 4-8. VMMC1 LDO Regulator Characteristics
Parameter
Test Conditions
Min(1)
Typ(2) Max(3)
Unit
Output Load Conditions
Filtering capacitor
Connected from VMMC1.OUT to analog ground
0.3
1
2.7
F
Filtering capacitor ESR
20
600
m
Electrical Characteristics
VIN
Input voltage
2.7
3.6
5.5
V
1.7945
1.85 1.9055
2.7645
2.85 2.9355
VOUT
Output voltage
On mode and low-power mode
V
2.91
3.0
3.09
3.0555
3.15 3.2445
(1)
Min = Minimum value
(2)
Typ = Typical value
(3)
Max = Maximum value
Power Module
49
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