參數(shù)資料
型號: FAN2514
廠商: Fairchild Semiconductor Corporation
英文描述: 200 mA CMOS LDO Regulators with Fast Start Enable
中文描述: 200毫安的CMOS LDO穩(wěn)壓器的快速啟動功能
文件頁數(shù): 2/10頁
文件大?。?/td> 253K
代理商: FAN2514
PRODUCT SPECIFICATION
FAN2514/FAN2515
2
REV. 1.0.8 2/14/03
Pin Assignments
Pin Descriptions
Pin No.
1.
2.
3.
4.
5.
FAN2514
V
IN
GND
EN
ADJ
V
OUT
FAN2514-XX
V
IN
GND
EN
BYP
V
OUT
FAN2515-XX
V
IN
GND
EN
ERR
V
OUT
Pin Name
ADJ
Pin No.
4
Type
Input
Pin Function Description
FAN2514 Adjust.
determines output voltage.
FAN2514-XX Bypass.
FAN2515-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
FAN2514/15 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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FAN2514_10 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:200 mA CMOS LDO Regulators
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FAN2514S25X 功能描述:低壓差穩(wěn)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(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
FAN2514S25X_Q 功能描述:低壓差穩(wěn)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(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