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參數(shù)資料
| 型號(hào)： | LP3918TLX-L |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Battery Charge Management and Regulator Unit |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA25 |
| 封裝： | 2.50 X 2.50 MM, MICRO, SMD-25 |
| 文件頁(yè)數(shù)： | 30/30頁(yè) |
| 文件大小： | 1292K |
| 代理商： | LP3918TLX-L |
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LDO5 (RX), LDO6 (TX), LDO7 (GP) Electrical Characteristics
Unless otherwise noted, V
IN ( = VIN1 = VIN2 = BATT) = 3.6V, GND = 0V, CVIN1-2=10F, CLDOX=1F. RX_EN, TX_EN high. LDO7
Enabled via Serial Interface. Note V
INMIN is the greater of 3.0V or VOUT5/6/7 + 0.5V. Typical values and limits appearing in normal
type apply for T
J = 25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation, Ta =
T
J = 40°C to +125°C. (Note 6)
Symbol
Parameter
Condition
Typ
Limit
Units
Min
Max
V
OUT5,
V
OUT6, VOUT7
Output Voltage
I
OUT5/6/7 = 1mA, VOUT5/6/7= 3.0V
2
+2
%
3
+3
Output Voltage
LDO5 default
3.0
V
LDO6 default
3.0
LDO7 default
3.0
I
OUT5, IOUT6,
I
OUT7
Output Current
V
INMIN ≤ VIN ≤ 5.5V
150
mA
Output Current Limit
V
OUT5/6/7 = 0V
300
V
DO5, VDO6,
V
DO7
Dropout Voltage
I
OUT5/6/7 = 150mA (Note 8)
180
240
mV
ΔV
OUT5,
ΔV
OUT6,
ΔV
OUT7
Line Regulation
V
INMIN ≤ VIN ≤ 5.5V
2
mV
I
OUT5/6/7 = 1mA
Load Regulation
1mA
≤ I
OUT5/6/7 ≤ 150mA
20
mV
e
n5, en6, en7
Output Noise Voltage
10Hz
≤ f ≤ 100kHz,
45
V
RMS
C
OUT = 1F
(Note 7)
PSRR
Power Supply Rejection Ratio
F = 10kHz, C
OUT = 1F
65
dB
I
OUT5/6/7 = 20mA (Note 7)
t
START-UP
Start-Up Time from Shut-down
C
OUT = 1F, IOUT5/6/7 = 150mA
(Note 7)
40
60
s
t
Transient
Start-Up Transient Overshoot
C
OUT = 1F, IOUT5/6/7 = 150mA
(Note 7)
5
30
mV
9
www.national.com
LP3918
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