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參數(shù)資料
| 型號： | LP3971 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
| 中文描述： | 電源管理單元提供高級應(yīng)用處理器 |
| 文件頁數(shù)： | 7/42頁 |
| 文件大?。?/td> | 1350K |
| 代理商： | LP3971 |
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Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
All Inputs
GND to GND SLUG
Junction Temperature (T
J-MAX
)
Storage Temperature
Power Dissipation
(T
A
= 70C) (Note 3)
Junction-to-Ambient Thermal
Resistance
θ
JA
(Note 3)
Maximum Lead Temp (Soldering)
0.3V to +6V
±
0.3V
150C
65C to +150C
3.2W
25C/W
260C
ESD Rating (Note 5)
Human Body Model
Machine Model
2 kV
200V
Operating Ratings
V
IN
V
EN
Junction Temperature (T
J
)
Operating Temperature (T
A
)
Maximum Power Dissipation
(T
A
= 70C) (Notes 3, 4)
2.7V to 5.5V
0 to (V
IN
+ 0.3V)
40C to +125C
40C to +85C
2.2W
General Electrical Characteristics
25C. Limits appearing in
boldface
type apply over the entire junction temperature range for operation, 40C to +125C.
(Notes 2, 6)
Typical values and limits appearing in normal type apply for T
J
=
Symbol
Parameter
Conditions
Min
2.7
Typ
3.6
Max
5.5
Units
V
V
IN
, VDDA, V
IN
Buck1, 2 and
3
V
IN
LDO4, V
IN
LDO5
T
SD
Battery Voltage
Power Supply for LDO 4 and 5
Thermal Shutdown (Note 14)
1.74
3.6
160
20
5.5
V
Temperature
Hysteresis
C
**No input supply should be higher then VDDA
Supply Specification
(Notes 2, 6)
Supply
V
OUT
(Volts)
I
MAX
Maximum Output
Current (mA)
(Note 14)
30 or 10
300
150
150
150
370
1600
1600
1600
Range (V)
Tracking (Note 10)
1.8 to 3.3
1.8 to 3.3
1.8 to 3.3
1.0 to 3.3
1.0 to 3.3
0.8 to 3.3
0.8 to 3.3
0.8 to 3.3
Resolution (mV)
N/A
100
100
100
50-600
50-600
50-600
50-600
50-600
LDO_RTC
LDO1
LDO2
LDO3
LDO4
LDO5
BUCK 1
BUCK 2
BUCK 3
Defaults
(Notes 2, 6)
‘A’ Version
‘B’ Version
Supply
LDO_RTC
LDO1
LDO2
LDO3
LDO4
LDO5
BUCK1
BUCK2
BUCK3
(V)
2.8
1.8
1.8
3.0
3.0
1.4
1.4
3.3
1.8
Enable ‘A’
…
SYS_EN
SYS_EN
SYS_EN
SYS_EN
PWR_EN
PWR_EN
SYS_EN
SYS_EN
(V)
2.8
3.0
3.0
3.0
1.3
1.1
1.4
3.0
1.8
Enable ‘B’
…
SYS_EN
SYS_EN
SYS_EN
PWR_EN
PWR_EN
PWR_EN
SYS_EN
SYS_EN
**Version-A LDO Tracking Disabled, Version-B LDO Tracking Enabled
L
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| LP3971SQ-8858/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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