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| 型号： | LP2980AITP-3.3/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 4/24页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V 50MA 5USMD |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 最高 16V |
| 电压 - 压降（标准）： | 0.12V @ 50mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 50mA |
| 电流 - 限制（最小）： | 100mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 5-VFBGA |
| 供应商设备封装： | 5-uSMD |
| 包装： | 剪切带 (CT) |
| 其它名称： | *LP2980AITP-3.3 *LP2980AITP-3.3/NOPB LP2980AITP-3.3CT |
SNOS733M – APRIL 2000 – REVISED JUNE 2013
ELECTRICAL CHARACTERISTICS (continued)
Limits in standard typeface are for T J = 25°C, and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: V IN = V O(NOM) + 1V, I L = 1 mA, C OUT = 1 μ F, V ON/OFF = 2V.
Symbol
Parameter
Conditions
Typ
LP2980AI-XX (1)
LP2980I-XX (1)
Units
Min
Max
Min
Max
I L = 0
I L = 1 mA
65
80
95
125
110
170
95
125
110
170
I GND
Ground Pin Current
I L = 10 mA
140
220
460
220
460
μ A
I L = 50 mA
V ON/OFF < 0.18V
375
0
600
1200
1
600
1200
1
V ON/OFF
ON/OFF Input Voltage (3)
High = O/P ON
Low = O/P OFF
1.4
0.55
1.6
0.18
1.6
0.18
V
I ON/OFF
I O(PK)
e n
ON/OFF Input Current
Peak Output Current
Output Noise Voltage
(RMS)
V ON/OFF = 0
V ON/OFF = 5V
V OUT ≥ V O(NOM) ? 5%
BW = 300 Hz–50 kHz, C OUT
= 10 μ F
0
5
150
160
100
? 1
15
100
? 1
15
μ A
mA
μ V
Ripple Rejection
f = 1 kHz
C OUT = 10 μ F
63
dB
I O(MAX)
Short Circuit Current
R L = 0 (Steady State)
(4)
150
mA
(3)
(4)
The ON/OFF inputs must be properly driven to prevent misoperation. For details, refer to ON/OFF INPUT OPERATION .
See related curve(s) in TYPICAL PERFORMANCE CHARACTERISTICS section.
Typical Application Circuit
*ON/OFF input must be actively terminated. Tie to V IN if this function is not to be used.
**Minimum Output Capacitance is 1 μ F to insure stability over full load current range. More capacitance provides
superior dynamic performance and additional stability margin (see APPLICATION HINTS ).
***Do not make connections to this pin.
Figure 3.
4
Product Folder Links: LP2980-N
Copyright ? 2000–2013, Texas Instruments Incorporated
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