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參數(shù)資料
型號(hào): ADSP-2189
廠商: Analog Devices, Inc.
元件分類(lèi): 基準(zhǔn)電壓源/電流源
英文描述: Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
中文描述: 無(wú)電容,NMOS管,150mA的低壓差穩(wěn)壓器的反向電流保護(hù)
文件頁(yè)數(shù): 17/32頁(yè)
文件大?。?/td> 244K
代理商: ADSP-2189
REV. A
ADSP-2189M
17
VALID FOR ALL TEMPERATURE GRADES.
1
POWER REFLECTS DEVICE OPERATING WITH NO OUTPUT LOADS.
2
TYPICAL POWER DISSIPATION AT 2.5V V
DDINT
AND +25 C EXCEPT
WHERE SPECIFIED.
3
I
MEASUREMENT TAKEN WITH ALL INSTRUCTIONS EXECUTING FROM
INTERNAL MEMORY. 50% OF THE INSTRUCTIONS ARE MULTIFUNCTION
(TYPES 1, 4, 5, 12, 13, 14), 30% ARE TYPE 2 AND TYPE 6, AND 20% ARE
IDLE INSTRUCTIONS.
4
IDLE REFERS TO ADSP-2189M STATE OF OPERATION DURING EXECUTION
OF IDLE INSTRUCTION. DEASSERTED PINS ARE DRIVEN TO EITHER V
DD
OR GND.
12
P
I
n
)
20mW
15mW
14.25mW
15.7mW
16.4mW
24mW
IDLE (16)
IDLE (128)
IDLE
POWER, IDLE
n
MODES
2
1/t
CK
MHz
50
75
14
16
18
20
22
24
26
55
60
70
80
65
14
P
I
)
24mW
28mW
V
DD
= 2.65V
20mW
24mW
V
DD
= 2.5V
16.5mW
20mW
V
DD
= 2.35V
POWER, IDLE
1, 2, 4
1/t
CK
MHz
40
16
18
20
22
24
26
28
30
55
60
65
70
75
80
1/t
CK
MHz
50
80
60
55
82mW
70mW
61mW
95mW
82mW
2189L POWER, INTERNAL
1, 2, 3
110mW
P
I
)
V
DD
= 2.65V
V
DD
= 2.5V
V
DD
= 2.35V
55
60
65
70
75
65
70
75
80
85
90
95
100
105
110
115
V
DD
= 2.65V
V
DD
= 2.35V
V
DD
= 2.5V
Figure 15. Power vs. Frequency
CAPACITIVE LOADING
Figure 16 and Figure 17 show the capacitive loading character-
istics of the ADSP-2189M.
C
L
pF
R
2
30
300
0
50
100
150
200
250
25
15
10
5
0
20
T = +85 C
V
DD
= 0V TO 2.0V
Figure 16. Typical Output Rise Time vs. Load Capacitance,
C
L
(at Maximum Ambient Operating Temperature)
C
L
pF
14
0
V
50
100
150
250
200
12
4
2
2
10
8
NOMINAL
16
18
6
4
6
Figure 17. Typical Output Valid Delay or Hold vs. Load
Capacitance, C
L
(at Maximum Ambient Operating
Temperature)
V
DD
INTERNAL
Volts
700
C
2.25
2.35
2.5
2.75
2.65
600
300
200
100
500
400
800
900
0
657 A
393 A
131 A
772 A
475 A
161 A
TEMP = +85 C
TEMP = +70 C
TEMP = +25 C
Figure 18. IDD Power-Down
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