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| 型號(hào)： | TPS65930BZCHR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 消費(fèi)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(yè)數(shù)： | 51/115頁(yè) |
| 文件大小： | 1232K |
| 代理商： | TPS65930BZCHR |
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SWCS037G
– MAY 2008 – REVISED APRIL 2011
4.1.6
VMMC1 LDO Regulator
The VMMC1 LDO regulator is a programmable linear voltage converter that powers the multimedia card
(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 charge pump. In this case,
the input from the VMMC1 LDO can be higher than the battery voltage. Table 4-8 describes the regulator
characteristics.
Table 4-8. VMMC1 LDO Regulator Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit
Output Load Conditions
Filtering capacitor
Connected from VMMC1.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
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
On mode
220
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 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
290
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
40
Power Module
Copyright
2008–2011, Texas Instruments Incorporated
focus.ti.com: TPS65930/TPS65920
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