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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 28/30頁 |
| 文件大?。?/td> | 1292K |
| 代理商： | LP3918TLX-L |
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Symbol
Parameter
Condition
Typ
Limit
Units
Min
Max
LOGIC AND CONTROL INPUTS (LDO2 at 3.0V)
V
IL
Input Low Level
PS_HOLD, SDA, SCL, RX_EN,
TCXO_EN, TX_EN
0.25*
V
LDO2
PWR_ON, HF_PWR
0.25*
V
BATT
V
IH
Input High Level
PS_HOLD, SDA, SCL, RX_EN,
TCXO_EN, TX_EN
0.75*
V
LDO2
PWR_ON, HF_PWR
0.75*
V
BATT
I
IL
Logic Input Current
All logic inputs except PWR_ON
and HF_PWR
-5
+5
A
0V
≤ V
INPUT ≤ VBATT
R
IN
Input Resistance
PWR_ON, HF_PWR Pull-Down
resistance to GND(Note 7)
500
k
LOGIC AND CONTROL OUTPUTS (LDO2 at 3.0V)
V
OL
Output Low Level
PON_N, RESET_N, SDA,
ACOK_N
0.25*
V
I
OUT = 2mA
V
LDO2
V
OH
Output High Level
PON_N, RESET_N, ACOK_N
0.75*
V
I
OUT = 2mA
V
LDO2
(Not applicable to Open Drain
Output SDA)
LDO1 (CORE) Electrical Characteristics
Unless otherwise noted, V
IN ( = VIN1 = VIN2 = BATT) = 3.6V, GND = 0V, CVIN1-2=10F, CLDOX=1F. VOUT1 set to 3.0V output. Note
V
INMIN is the greater of 3.0V or VOUT1+ 0.5V. Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing
in boldface type apply over the entire junction temperature range for operation, T
Symbol
Parameter
Condition
Typ
Limit
Units
Min
Max
V
OUT1
Output Voltage Accuracy
I
OUT1 = 1mA, VOUT1= 3.0V
2
+2
%
3
+3
Output Voltage
Default
1.8
V
I
OUT1
Output Current
V
INMIN ≤ VIN ≤ 5.5V
300
mA
Output Current Limit
V
OUT1 = 0V
600
V
DO1
Dropout Voltage
I
OUT1 = 300mA, (Note 8)
200
280
mV
ΔV
OUT1
Line Regulation
V
INMIN ≤ VIN ≤ 5.5V
2
mV
I
OUT1 = 1mA
Load Regulation
1mA
≤ I
OUT1 ≤ 300mA
20
mV
e
n1
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
OUT1 = 20mA (Note 7)
t
START-UP
Start-Up Time from Shut-down
C
OUT = 1F, IOUT1 = 300mA
60
170
s
(Note 7)
T
Transient
Start-Up Transient Overshoot
C
OUT = 1F, IOUT1 = 300mA
60
120
mV
(Note 7)
7
www.national.com
LP3918
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| LP3919 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:CDMA Power Management Unit |
| LP3919RL-A/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3919RL-B/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3919RL-C/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3919RL-D/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
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