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參數資料
| 型號： | FAN2503S285X |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 150 mA CMOS LDO Regulators |
| 中文描述： | 2.85 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數： | 2/10頁 |
| 文件大小： | 255K |
| 代理商： | FAN2503S285X |
PRODUCT SPECIFICATION
FAN2502/FAN2503
2
REV. 1.1.7 2/14/03
Pin Assignments
Pin Descriptions
Pin No.
1.
2.
3.
4.
5.
FAN2502
V
IN
GND
EN
ADJ
V
OUT
FAN2502-XX
V
IN
GND
EN
BYP
V
OUT
FAN2503-XX
V
IN
GND
EN
ERR
V
OUT
Pin Name
ADJ
Pin No.
4
Type
Input
Pin Function Description
FAN2502 Adjust.
determines output voltage.
FAN2502-XX Bypass.
FAN2503-XX Error.
0:
Output voltage < 95% of nominal.
1:
Output voltage > 95% of nominal.
Enable.
0:
Shutdown V
OUT
1:
Enable V
OUT
.
Voltage Input.
Supply voltage input.
Voltage Output.
Regulated output voltage.
Ground.
Ratio of potential divider from VOUT to ADJ
BYP
ERR
4
4
Passive
Open drain
Connect 470 pF capacitor for noise reduction.
Error flag output.
EN
3
Digital Input
.
V
IN
1
5
2
Power in
Power out
Power
V
GND
OUT
1
5
2
3
V
IN
GND
EN
4
V
OUT
ADJ/BYP/ERR
Functional Description
Designed utilizing CMOS process technology, the
FAN2502/03 family of products are carefully optimized for
use in compact battery-powered devices, offering a unique
combination of low power consumption, extremely low
dropout voltages, high tolerance for a variety of output
capacitors, and the ability to disable the output to less than
1μA under user control. In the circuit, a difference amplifier
controls the current through a series-pass P-Channel
MOSFET, comparing the load voltage at the output with an
onboard low-drift bandgap reference. The series resistance
of the pass P-Channel MOSFET is approximately 1
resulting in an unusually low dropout voltage under load
when compared to older bipolar pass-transistor designs.
,
Protection circuitry is provided onboard for overload condi-
tions. In conditions where the device reaches temperatures
exceeding the specified maximums, an onboard circuit shuts
down the output, where it remains suspended until it has
cooled before re-enabling. The user is also free to shut down
the device using the Enable control pin at any time.
Careful design of the output regulator amplifier assures loop
stability over a wide range of ESR values in the external
output capacitor. A wide range of values and types can be
accomodated, allowing the user to select a capacitor meeting
his space, cost, and performance requirements, and enjoy
reliable operation over temperature, load, and tolerance
variations.
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| FAN2502 | 150 mA CMOS LDO Regulators |
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| FAN2503S28X | 150 mA CMOS LDO Regulators |
| FAN2504S25X | 200 mA CMOS LDO Regulators |
| FAN2505S33X | 200 mA CMOS LDO Regulators |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN2503S28X | 功能描述:低壓差穩壓器 - LDO LDO Voltage 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| FAN2503S30 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
| FAN2503S30X | 功能描述:低壓差穩壓器 - LDO LDO Voltage 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| FAN2503S30X_Q | 功能描述:低壓差穩壓器 - LDO LDO Voltage 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| FAN2503S33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
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