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TC1174VUA Datasheet

  • TC1174VUA

  • 300mA CMOS LDO with Shutdown and VREF Bypass

  • 12頁(yè)

  • MICROCHIP   MICROCHIP

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TC1174
300mA CMOS LDO with Shutdown and V
REF
Bypass
Features
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Extremely Low Supply Current (50碌A(chǔ), Typ.)
Very Low Dropout Voltage
300mA Output Current
Adjustable Output Voltages
Power Saving Shutdown Mode
Bypass Input for Ultra Quiet Operation
Over Current and Over Temperature Protection
Space-Saving MSOP Package Option
General Description
The TC1174 is an adjustable output CMOS low dropout
regulator. Total supply current is typically 50碌A(chǔ) at full
load (20 to 60 times lower than in bipolar regulators).
TC1174 key features include ultra low noise operation
(plus optional Bypass input); very low dropout voltage
(typically 270mV at full load) and internal feed-forward
compensation for fast response to step changes in
load. Supply current is reduced to 0.05碌A(chǔ) (typical) and
V
OUT
falls to zero when the shutdown input is low.
The TC1174 incorporates both over temperature and
over current protection. The TC1174 is stable with an
output capacitor of only 1碌F and has a maximum
output current of 300mA.
Applications
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Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular/GSM/PHS Phones
Linear Post-Regulators for SMPS
Pagers
Typical Application
V
OUT
C1
1碌F
+
R1
470K
1 V
OUT
V
IN
8
V
IN
2
GND
NC
7
NC
Device Selection Table
Part Number
TC1174VOA
TC1174VUA
Output
Voltage
(V)
Adjustable
Package
8-Pin SOIC
Junction
Temp. Range
-40擄C to +125擄C
TC1174
3 NC
SHDN
6
Shutdown
Control
(from Power
Control Logic)
C
BYPASS
470pF
(Optional)
V
OUT
= V
REF
x
鈥?+ 1
R2
470K
4
ADJ
Bypass
5
Adjustable 8-Pin MSOP -40擄C to +125擄C
[
R1
]
R2
Package Type
8-Pin MSOP
V
OUT
GND
NC
ADJ
1
2
3
4
8
V
IN
NC
SHDN
Bypass
TC1174VUA
7
6
5
8-Pin SOIC
V
OUT
1
8 V
IN
GND 2
TC1174VOA
7 NC
NC 3
ADJ 4
6 SHDN
5 Bypass
2002 Microchip Technology Inc.
DS21363B-page 1
漏

TC1174VUA 產(chǎn)品屬性

  • 100

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 線性

  • -

  • 正，可調(diào)式

  • 可調(diào)

  • 2.7 V ~ 6 V

  • 0.27V @ 300mA

  • 1

  • 300mA（最?。?/p>

  • -

  • -40°C ~ 125°C

  • 表面貼裝

  • 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）

  • 8-MSOP

  • 管件

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