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參數資料
型號: MC34270FB
廠商: MOTOROLA INC
元件分類: 穩壓器
英文描述: Single Output LDO, 250mA, Fixed(3.0V), Low Noise, Fast Transient Response 5-SOT-23 -40 to 85
中文描述: 0.5 A DUAL SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PQFP32
封裝: PLASTIC, QFP-32
文件頁數: 5/12頁
文件大小: 364K
代理商: MC34270FB
MC34270 MC34271
5
MOTOROLA ANALOG IC DEVICE DATA
0
0
2.0
2.5
0
0.16
0
0
Vs
ISource, SWITCH OUTPUT CURRENT (mA)
Q
VDD, SUPPLY VOLTAGE (V)
F
ID, DRAIN CURRENT (mA)
O
I, CURRENT DRAW (mA)
Figure 3. Reference Voltage Change versus
Reference Current
Figure 4. Quiescent Current versus Supply Voltage
Figure 5. FET Drain Voltage versus Sink Current
Figure 6. ELD and DRV1 Switch Output Source
and Sink Saturation versus Current
VDD = 6.0 V
TA = 25
°
C
VDD = 6.0 V
TA = 25
°
C
VDD
Source Saturation
Vref
VA
EN1 and EN2 = 1
EN1 = 1 and EN2 = 0
RT = 169 k
No Loading
TA = 25
°
C
Standby Current
EN1 and EN2 = 0
Sink Saturation
1.5
2.0
1.0
0.5
0
– 5.0
–10
–15
– 20
– 25
– 30
0.12
0.08
0.04
–1.0
– 2.0
– 3.0
30
60
15
45
50
150
100
200
1.0
2.0
3.0
4.0
5.0
4.0
6.0
8.0
10
12
16
18
2.0
2.2
Vs
μ
S
1.4
1.8
1.0
0.6
0.2
1.5
1.0
0.5
14
0
– 4.0
0
VDD = 6.0 V
TA = 25
°
C
TA, AMBIENT TEMPERATURE (
°
C)
0
8.0
0
0.30
O
V
Figure 7. Vref and VA Variation
versus Temperature
TA, AMBIENT TEMPERATURE (
°
C)
Figure 8. Oscillator Frequency Variation
versus Temperature
0.25
0.20
0.15
0.10
0.05
0
– 0.05
– 0.10
6.0
4.0
2.0
0
– 2.0
– 4.0
– 6.0
– 8.0
10
20
30
40
50
60
70
10
20
30
40
50
60
70
VDD = 6.0 V
RT = 169 k
VDD = 6.0 V
Vref
VA
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相關代理商/技術參數
參數描述
MC34271FB 制造商:Rochester Electronics LLC 功能描述:- Bulk
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