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參數資料
型號: TPS65920BZCHR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數: 52/115頁
文件大小: 1232K
代理商: TPS65920BZCHR
SWCS037G
– MAY 2008 – REVISED APRIL 2011
4.1.7
VAUX2 LDO Regulator
The VAUX2 general-purpose LDO regulator powers the auxiliary devices. Table 4-9 describes the
regulator characteristics.
Table 4-9. VAUX2 LDO Regulator Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit
Output Load Conditions
Filtering capacitor
Connected from VAUX2.OUT to analog ground
0.3
1
2.7
μF
Filtering capacitor ESR
20
600
m
Electrical Characteristics
VIN
Input voltage
2.7
3.6
4.5
V
1.3
1.5
1.7
1.8
1.9
2.0
VOUT
Output voltage
On mode and low-power mode
–3%
3%
V
2.1
2.2
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: 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 μF (within 10% of VOUT)
100
μs
Wake-up time
Full load capability
10
μs
f
< 10 kHz
50
10 kHz
< f < 100 kHz
40
Ripple rejection
dB
f = 1 MHz
25
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
On mode, IOUT = IOUTmax
250
mV
ILoad: IMin – IMax
Transient load regulation
–40
40
mV
Slew: 40 mA/
μs
VIN drops 500 mV
Transient line regulation
10
mV
Slew: 40 mV/
μs
Copyright
2008–2011, Texas Instruments Incorporated
Power Module
41
focus.ti.com: TPS65930/TPS65920
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TPS65920BZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
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