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參數資料
型號: TPS65950ZXNT
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: 118/167頁
文件大?。?/td> 2566K
代理商: TPS65950ZXNT
4.1.13 VAUX4 LDO Regulator
TPS65950
Integrated Power Management/Audio Codec
SWCS032 – OCTOBER 2008
www.ti.com
Table 4-13. VAUX3 LDO Regulator Characteristics
Parameter
Test Conditions
Min(1)
Typ(2) Max(3)
Unit
Output Load Conditions
Filtering capacitor
Connected from VAUX3.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
4.5
V
1.455
1.5
1.545
1.746
1.8
1.854
VOUT
Output voltage
On mode and low-power mode
2.425
2.5
2.575
V
2.716
2.8
2.884
2.91
3.0
3.09
On mode
200
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
270
Ground current
Low-power mode, IOUT = 0
15
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
(1)
Min = Minimum value
(2)
Typ = Typical value
(3)
Max = Maximum value
The VAUX4 GP LDO regulator powers the auxiliary devices. The VAUX4 regulator has an independent
supply input pin and can be preregulated by an external voltage. Table 4-14 lists the characteristics of the
regulator.
Table 4-14. VAUX4 LDO Regulator Characteristics
Parameter
Test Conditions
Min(1)
Typ(2) Max(3)
Unit
Output Load Conditions
Filtering capacitor
Connected from VAUX4.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
4.5
V
(1)
Min = Minimum value
(2)
Typ = Typical value
(3)
Max = Maximum value
54
Power Module
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