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參數(shù)資料
| 型號(hào)： | MIC5248-1.2BM5 |
| 廠商： | MICREL INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 150mA UCap CMOS LDO Regulator w/Power Good |
| 中文描述： | 1.2 V FIXED POSITIVE LDO REGULATOR, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大小： | 64K |
| 代理商： | MIC5248-1.2BM5 |
MIC5248
Micrel
November 2002
3
MIC5248
Electrical Characteristics
V
IN
= 2.7V, V
EN
= V
IN;
I
OUT
= 100
μ
A; T
J
= 25
°
C,
bold
values indicate
–
40
°
C
≤
T
J
≤
+125
°
C; unless noted.
Symbol
Parameter
Conditions
Min
Typical
Max
Units
V
O
Output Voltage Accuracy
I
OUT
= 100
μ
A
–
3
–
4
3
4
%
%
V
LNR
V
LDR
I
Q
I
GND
Line Regulation
V
IN
= 2.7V to 6V
I
OUT
= 0.1mA to 150mA,
Note 4
V
EN
≤
0.4V (shutdown)
I
OUT
= 0mA; V
IN
= 6.0V
I
OUT
= 150mA; V
IN
= 6.0V
f = 120Hz, C
OUT
= 4.7
μ
F, I
OUT
= 150mA
V
OUT
= 0V
–
0.3
0
0.3
%/V
Load Regulation
4.0
5.0
%
Quiescent Current
0.45
1
μ
A
Ground Pin Current,
Note 5
100
150
μ
A
100
150
μ
A
PSRR
Power Supply Rejection
60
dB
I
LIM
Enable Input
Current Limit
160
350
mA
V
IL
V
IH
I
EN
Enable Input Logic-Low Voltage
V
IN
= 5.5V, regulator shutdown
V
IN
= 5.5V, regulator enabled
V
IL
≤
0.4V; V
IN
= 5.5V
V
IH
≥
1.6V; V
IN
= 5.5V
0.4
V
Enable Input Logic-High Voltage
1.6
V
Enable Input Current
0.01
μ
A
0.01
μ
A
Thermal Protection
Thermal Shutdown Temperature
150
°
C
Thermal Shutdown Hysteresis
10
°
C
Power Good, Note 6
V
PG
Low Threshold
High Threshold
% of V
OUT
(PG ON)
% of V
OUT
(PG OFF)
I
L
= 100
μ
A, fault condition
power good off, V
PG
= 5.5V
See
“
Timing Diagram
”
89.5
%
%
96.5
V
OL
I
PG
V
PG
Delay
PG Output Logic-Low Voltage
0.02
0.1
V
Power Good Leakage Current
0.01
μ
A
Delay Time to Power Good
1
5
ms
Note 1.
Note 2.
Note 3.
Note 4.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load
range from 0.1mA to 150mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground
pin current.
The power good is a function of the output voltage being 5% low and the detection of one of the following: overcurrent, over-temperature or
dropout. See
“
Applications Information
”
section for additional information.
Note 5.
Note 6.
Absolute Maximum Ratings
(Note 1)
Supply Input Voltage (V
IN
) .................................. 0V to +7V
Enable Input Voltage (V
EN
) .................................. 0V to V
IN
Flag Output Voltage (V
PG
) ................................... 0V to V
IN
Junction Temperature (T
J
) ...................................... +150
°
C
Storage Temperature ...............................
–
65
°
C to +150
°
C
Lead Temperature (soldering, 5 sec.) ....................... 260
°
C
ESD,
Note 3
Operating Ratings
(Note 2)
Input Voltage (V
IN
) ......................................... +2.7V to +6V
Enable Input Voltage (V
EN
) .................................. 0V to V
IN
Flag Output Voltage (V
PG
) ................................... 0V to V
IN
Junction Temperature (T
J
) .......................
–
40
°
C to +125
°
C
Thermal Resistance
SOT-23
(θ
JA
) ......................................................235
°
C/W
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| MIC5249-1.5YMM | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA uCapl LDO with Reset (Lead Free) RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC5249-1.5YMM TR | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA uCapl LDO with Reset (Lead Free) RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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