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參數資料
| 型號： | LM9072 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Dual Tracking Low-Dropout System Regulator |
| 中文描述： | 雙跟蹤低壓差穩壓器系統 |
| 文件頁數： | 3/15頁 |
| 文件大小： | 477K |
| 代理商： | LM9072 |
Electrical Characteristics
(Continued)
6.0V
≤
V
IN
≤
19V, T
CASE
= 25C, unless otherwise specified. C
OUT
≥
6 μF with 0.3
≤
ESR
≤
3
on each regulator output.
Symbol
Parameter
Conditions
RESET OUTPUT
V
THRL
Low Switching Threshold
V
MAIN
Output Controls Reset
V
THRH
High Switching Threshold
V
MAIN
Output Controls Reset
V
LOW
Logic Low Output Voltage
1V
≤
V
MAIN
≤
V
THRL
,
R
RESET
to V
MAIN
V
HIGH
Logic High Output Voltage
Normal Operation,
V
THRL
≤
V
MAIN
≤
V
THRH
, I
SOURCE
= 0
R
P-U
Internal Output Pull-Up Resistance
T
DELAY
Reset Delay Interval
C
DELAY
= 0.1 μF (Low Leakage),
I
DELAY
for Charging the Delay
Capacitor is Typically 6 μA
T
RISE
Output Rise Time
From 10% V
to 90% V
MAIN
C
LRESET
= 50 pF
T
FALL
Output Fall Time
From 90% V
to 10% V
MAIN
C
LRESET
= 50 pF
CONTROL INPUTS
V
ON
ON Threshold for ON/OFF Input
R
SERIES
= 22 k
V
OFF
OFF Threshold for ON/OFF Input
R
SERIES
= 22 k
(Note 3)
I
ON/OFF
ON/OFF Input Current
1.4V
≤
V
ON/OFF
≤
4.5V
0.3V
≤
V
ON/OFF
≤
7V (Note 6)
ON
K-A
Turn ON Threshold for Keep Alive
Input
OFF
K-A
Turn OFF Threshold for Keep Alive
Input
R
P-D
Pull-Down Resistance at Keep
Alive Input
Min
Max
Units
4.45
5.40
4.75
5.75
V
V
0.4
V
V
MAIN
–
50 mV
2.4
V
MAIN
V
6.0
k
35
70
ms
1.5
μs
0.5
μs
3.5
1.5
1
1
4.5
2.5
12
5
V
V
μA
mA
2
V
(Note 3)
0.8
V
0V
≤
V
K-A
≤
5V
5
40
k
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device re-
mains functional but do not guarantee specific performance limits. For guaranteed specifications and test conditions see the Electrical Characteristics.
Note 2:
Human body model, 150 pF capacitor discharged through a 1.5 k
resistor.
Note 3:
If either control input is left open circuited the regulators will turn OFF.
Note 4:
The input quiescent current will increase when the regulators are in dropout conditions. The amount of additional input currents is a direct function of the total
load current on both outputs. The peak increase in current is limited to 50% of the total load current.
Note 5:
The dropout voltage specifications actually indicate the saturation voltage of the PNP power transistors used in each regulator. Over the full load current and
temperature ranges both regulators will output at least 4.7V with an input voltage of only 5.5V.
Note 6:
The ON/OFF input is internally clamped to a 7V zener diode through a 1 k
resistor.
L
www.national.com
3
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| LM9072S | 功能描述:IC REG LDO 5V .35A/80MA TO-263-9 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 線性 系列:- 標準包裝:1 系列:- 穩壓器拓撲結構:正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩壓器數量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應商設備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
| LM9072SX | 功能描述:IC REG LDO 5V .35A/80MA TO-263-9 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 線性 系列:- 標準包裝:1 系列:- 穩壓器拓撲結構:正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩壓器數量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應商設備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
| LM9072T | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Tracking Low-Dropout System Regulator |
| LM9073 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual High Current Low-Dropout System Regulator |
| LM9073S | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual High Current Low-Dropout System Regulator |
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