參數(shù)資料
型號(hào)： MIC5245-2.7BM5
廠商： MICREL INC
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： RZ Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 24V; Output Voltage (Vdc): 12V; Power: 0.5W; 1kVDC Isolation; SMD Package Styles; Single Regulated Output(Internal Linear Regulator); UL94V-0 Package Material; Optional Continuous Short Circuit Protected; Fully Encapsulated; Efficiency to 62%
中文描述： 2.7 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5
封裝： SOT-23, 5 PIN
文件頁(yè)數(shù)： 1/12頁(yè)
文件大小： 630K
代理商： MIC5245-2.7BM5
MIC5245
Micrel
June 2000
1
MIC5245
General Description
The MIC5245 is an efficient, precise CMOS voltage regulator
optimized for ultra-low-noise applications. The MIC5245 of-
fers better than 1% initial accuracy, extremely low dropout
voltage (typically 150mV at 150mA) and constant ground
current over load (typically 100
μ
A). The MIC5245 provides a
very low noise output, ideal for RF applications where quiet
voltage sources are required. A noise bypass pin is also
available for further reduction of output noise.
Designed specifically for hand-held and battery-powered
devices, the MIC5245 provides a TTL logic compatible en-
able pin. When disabled, power consumption drops nearly to
zero.
The MIC5245 also works with low-ESR ceramic capacitors,
reducing the amount of board space necessary for power
applications, critical in hand-held wireless devices.
Key features include current limit, thermal shutdown, a push-
pull output for faster transient response, and an active clamp
to speed up device turnoff. Available in the IttyBitty SOT-23-5
and power MSO-8 packages, the MIC5245 also offers a
range of fixed output voltages.
Typical Application
1
5
2
3
4
C
OUT
C
(optional)
Enable
Shutdown
EN
V
OUT
MIC5245-x.xBM5
EN (pin 3) may be
connected directly
o IN (pin 1).
V
IN
MIC5245
150mA
μ
Cap CMOS LDO Regulator
Preliminary Information
Features
Ultralow dropout
—
100mV @ 100mA
Ultralow noise
—
30
μ
V(rms)
Stability with tantalum or ceramic capacitors
Load independent, ultralow ground current
150mA output current
Current limiting
Thermal Shutdown
Tight load and line regulation
“
Zero
”
off-mode current
Fast transient response
TTL-Logic-controlled enable input
Applications
Cellular phones and pagers
Cellular accessories
Battery-powered equipment
Laptop, notebook, and palmtop computers
PCMCIA V
CC
and V
PP
regulation/switching
Consumer/personal electronics
SMPS post-regulator/dc-to-dc modules
High-efficiency linear power supplies
Ordering Information
Part Number
MIC5245-2.5BM5
MIC5245-2.7BM5
MIC5245-2.8BM5
MIC5245-2.85BM5
MIC5245-3.0BM5
MIC5245-3.1BM5
MIC5245-3.3BM5
MIC5245-3.3BMM
Other voltages available. Contact Micrel for details.
Marking
LS25
LS27
LS28
LS2J
LS30
LS31
LS33
—
Voltage
2.5V
2.7V
2.8V
2.85V
3.0V
3.1V
3.3V
3.3V
Junction Temp. Range
–
40
°
C to +125
°
C
–
40
°
C to +125
°
C
–
40
°
C to +125
°
C
–
40
°
C to +125
°
C
–
40
°
C to +125
°
C
–
40
°
C to +125
°
C
–
40
°
C to +125
°
C
–
40
°
C to +125
°
C
Package
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
MSOP-8
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
1
2
3
4
8
7
6
5
MIC5245-3.3MM
ENABLE
SHUTDOWN
V
IN
C
BYP
(OPTIONAL)
V
OUT
C
OUT
Ultra-Low-Noise Regulator Application
相關(guān)PDF資料
PDF描述
MIC5245-2.85BM5 150mA レCap CMOS LDO Regulator Preliminary Information
MIC5245-2.8BM5 150mA レCap CMOS LDO Regulator Preliminary Information
MIC5245-3.0BM5 RZ Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 24V; Output Voltage (Vdc): 15V; Power: 0.5W; 1kVDC Isolation; SMD Package Styles; Single Regulated Output(Internal Linear Regulator); UL94V-0 Package Material; Optional Continuous Short Circuit Protected; Fully Encapsulated; Efficiency to 62%
MIC5245-3.1BM5 RZ Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 24V; Output Voltage (Vdc): 15V; Power: 0.5W; 1kVDC Isolation; SMD Package Styles; Single Regulated Output(Internal Linear Regulator); UL94V-0 Package Material; Optional Continuous Short Circuit Protected; Fully Encapsulated; Efficiency to 62%
MIC5245-3.3BM5 150mA レCap CMOS LDO Regulator Preliminary Information
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MIC5245-3.0BM5 制造商:Rochester Electronics LLC 功能描述:- Bulk
MIC5245-3.0BM5 TR 功能描述:IC REG LDO 3V .15A SOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:500 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:12V 輸入電壓:14.5 V ~ 35 V 電壓 - 壓降（標(biāo)準(zhǔn)）:- 穩(wěn)壓器數(shù)量:1 電流 - 輸出:500mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-205AD，TO-39-3 金屬罐 供應(yīng)商設(shè)備封裝:TO-39 包裝:散裝 其它名稱:*LM78M12CH*LM78M12CH/NOPBLM78M12CH
MIC5245-3.0BM5TR 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel
MIC5245-3.0YM5 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述:
MIC5245-3.0YM5 TR 功能描述:低壓差穩(wěn)壓器 - LDO Low Noise, IttyBitty CMOS LDO (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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