參數(shù)資料
型號: LP2985AIM5X-4.7
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors
中文描述: 4.7 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5
封裝: SOT-23, 5 PIN
文件頁數(shù): 14/23頁
文件大?。?/td> 528K
代理商: LP2985AIM5X-4.7
SLVS522C JULY 2004 REVISED OCTOBER 2004
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL PERFORMANCE CHARACTERISTICS
C
IN
= 1 F, C
OUT
= 4.7
F, V
IN
= V
OUT(NOM)
+1 V, T
A
= 25 C, ON/OFF Pin Is Tied to V
IN
(unless otherwise specified)
200
220
240
260
280
300
320
0
0.5
1
1.5
2
2.5
3
3.5
Output Voltage V
Figure 6
SHORT-CIRCUIT CURRENT
vs
OUTPUT VOLTAGE
I
VO = 3.3 V
Figure 7
GROUND-PIN CURRENT
vs
LOAD CURRENT
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
0
20
40
60
80
100
120
140
Load Current mA
160
VO = 3.3 V
Cbyp = 10 nF
G
μ
A
0
10
20
30
40
50
60
70
80
90
100
10
100
1K
10K
100K
1M
Frequency Hz
R
Figure 8
RIPPLE REJECTION
vs
FREQUENCY
VI = 5 V
VO = 3.3 V
Co = 10
μ
F
Cbyp = 0 nF
50 mA
150 mA
1 mA
0
10
20
30
40
50
60
70
80
90
100
10
100
1K
10K
100K
1M
Frequency Hz
R
Figure 9
RIPPLE REJECTION
vs
FREQUENCY
50 mA
150 mA
1 mA
VI = 3.7 V
VO = 3.3 V
Co = 10
μ
F
Cbyp = 0 nF
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