參數(shù)資料
型號： ML4890
廠商： Fairchild Semiconductor Corporation
英文描述： High Efficiency, Low Ripple Boost Regulator(輸出可調、小波紋升壓穩(wěn)壓器)
中文描述： 高效率，低紋波升壓穩(wěn)壓器（輸出可調，小波紋升壓穩(wěn)壓器）
文件頁數(shù)： 3/12頁
文件大?。?/td> 166K
代理商： ML4890
3
ML4890
Storage Temperature Range .................... –65
°
C to +150
°
C
Lead Temperature (Soldering 10s)..........................+260
°
C
Thermal Resistance (
θ
JA
)
Plastic SOIC ....................................................110
°
C/W
OPERATING CONDITIONS
Temperature Range
ML4890CS-X ............................................ 0
°
C to +70
°
C
ML4890ES-X......................................... –20
°
C to +70
°
C
V
IN
Operating Range
ML4890CS-X ................................................ 1.0V to 6V
ML4890ES-X................................................. 1.1V to 6V
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
V
BOOST
........................................................................ 7V
Voltage on Any Other Pin ...GND –0.3V to V
BOOST
+0.3V
Peak Switch Current (I
PEAK
) .......................................... 1A
Average Switch Current (I
AVG
)............................... 500mA
LDO Output Current ............................................. 250mA
Junction Temperature .............................................. 150
°
C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, V
IN
= Operating Voltage Range, T
A
= Operating Temperature Range. (Note 1)
PARAMETER
CONDITIONS
MIN
TYP.
MAX
UNITS
Supply
V
IN
Current
V
IN
= 6V
60
75
μ
A
SHDN = high
15
25
μ
A
V
OUT
Quiescent Current
V
BOOST
= V
OUT
+ 0.5V
8
10
μ
A
V
L
Quiescent Current
1
μ
A
Reference
Output Voltage (V
REF
)
0 < I
PIN2
< –5
μ
A,
195
200
205
mV
PFM Regulator
Pulse Width (T
ON
)
4.5
5
5.5
μ
s
LDO
DC Output Voltage (V
OUT
)
ML4890-5
V
BOOST
= V
OUT
+ 0.5V, I
OUT
< 200mA
4.85
5.0
5.15
V
ML4890-3
V
BOOST
= V
OUT
+ 0.5V, I
OUT
< 100mA
3.2
3.3
3.4
V
ML4890-T
V
BOOST
= V
OUT
+ 0.5V, I
OUT
< 80mA
2.91
3.0
3.09
V
Load Regulation
ML4890-5
See Figure 1
V
IN
= 1.2V, I
OUT
< 7mA
V
IN
= 2.4V, I
OUT
< 50mA
4.85
4.85
5.0
5.0
5.15
5.15
V
V
ML4890-3
V
IN
= 1.2V, I
OUT
< 14mA
V
IN
= 2.4V, I
OUT
< 75mA
3.2
3.2
3.3
3.3
3.4
3.4
V
V
ML4890-T
V
IN
= 1.2V, I
OUT
< 15mA
V
IN
= 2.4V, I
OUT
< 60mA
2.91
2.91
3.0
3.0
3.09
3.09
V
V
Dropout Voltage
ML4890-5
See Figure 1
V
IN
= 1.2V, I
OUT
< 7mA
V
IN
= 2.4V, I
OUT
< 50mA
300
500
mV
mV
ML4890-3
V
IN
= 1.2V, I
OUT
< 14mA
V
IN
= 2.4V, I
OUT
< 75mA
300
500
mV
mV
ML4890-T
V
IN
= 1.2V, I
OUT
< 15mA
V
IN
= 2.4V, I
OUT
< 60mA
300
500
mV
mV
Output Ripple
5
mV
P-P
Shutdown
SHDN Threshold
0.5
0.8
1.0
V
SHDN Bias Current
–100
100
nA
Note 1:
Limits are guaranteed by 100% testing, sampling, or correlation with worst case conditions.
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相關代理商/技術參數(shù)
參數(shù)描述
ML4890CS-3 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:High Efficiency, Low Ripple Boost Regulator
ML4890CS-5 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:High Efficiency, Low Ripple Boost Regulator
ML4890CST 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel
ML4890CS-T 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:High Efficiency, Low Ripple Boost Regulator
ML4890CSTX 制造商:Rochester Electronics LLC 功能描述:- Bulk
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