Datasheet > R1173S221B-E2

R1173S221B-E2

更新时间： 2024-10-15 10:40:39

品牌	Logo	应用领域
理光 - RICOH		光电二极管
页数	文件大小	规格书
26页	671K
描述
Fixed Positive LDO Regulator, 2.2V, 0.15V Dropout, CMOS, PDSO6, HSOP-6

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R1173S221B-E2 数据手册

Super low On resistance/ Low voltage LDO

R1173x SERIES

OUTLINE

The R1173x Series are CMOS-based positive voltage regulator ICs. The R1173x Series have features of

super low dropout, 1A output current capability, and -3mV typical load regulation at 1A. Even the output voltage

is set at 1.5V, on resistance of internal FET is typically 0.32Ω. Therefore, applications that require a large current

at small dropout are suitable for the R1173x series. Low input voltage is acceptable and low output voltage can

be set. The minimum input voltage is 1.4V, and the lowest set output voltage is 0.8V. Each of these ICs consists

of a voltage reference unit, an error amplifier, resistor net for setting output voltage, a current limit circuit at

over-current, a chip enable circuit, a thermal-shutdown circuit, and so on. A stand-by mode with ultra low

consumption current can be realized with the chip enable pin. The output voltage types of R1173 are fixed one in

the IC and adjustable one (R1173x001x).

Since the packages for these ICs are the SOT-89-5 package, HSON-6, or HSOP-6J, high density mounting of

the ICs on boards is possible.

FEATURES

• Ultra-Low Supply Current.............................................Typ. 60µA

• Good Load Regulation .................................................Typ. –2mV, Max. 15mV at IOUT=300mA

.....................................................................................Typ. –3mV at IOUT=1000mA

• Low inrush current at turning-on ..................................Typ. 500mA

• Minimum Input Voltage.................................................Min. 1.4V

• Low Standby Current....................................................Typ. 0.1µA

• Output Current..............................................................Max. 1A

• Output Voltage ............................................Stepwise setting with a step of 0.1V in the range of

0.8V to 5.0V(Fixed output voltage type, except HSOP6J: only 0.8V to 3.5V type is available.) or

adjustable. (R1173X001X)

• High Power Supply Ripple Rejection .............

Typ. 70dB (V^OUT=3.0V)

• High Output Voltage Accuracy...................................... 2.0%

• Low Dropout Voltage....................................................Typ. 0.18V (V^OUT=3.0V, IOUT=1A)

...........................Typ. 0.32V (VOUT=1.5V/ IOUT=1A)

• Line Regulation ............................................................Typ. 0.05%/V

• Packages......................................................................SOT-89-5, HSON-6, High power-HSOP-6J

• Built-in Current Limit Circuit

• Built-in Thermal Shutdown Circuit

• Low Temperature-drift Coefficient of Output Voltage ...Typ. 100ppm/°C

• Output capacitors .........................................................CIN=COUT=Tantalum 4.7µF(VOUT<1.0V)

......................................................................................CIN=COUT=Ceramic 4.7µF(VOUT≥1.0V)

APPLICATIONS

• Local Power source for Notebook PC.

• Local Power source for portable communication equipments, cameras, and videos.

12 3 4 5 6 7...26

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与R1173S221B-E2相关器件

型号	品牌	获取价格	描述	数据表
R1173S221B-E2-FE	RICOH	获取价格	Fixed Positive LDO Regulator, 2.2V, CMOS, PDSO6, HALOGEN FREE AND ROHS COMPLIANT, HSOP-6
R1173S221D	RICOH	获取价格	Super low on resistance/Low voltage LDO
R1173S221D-E2-F	RICOH	获取价格	Fixed Positive LDO Regulator, 2.2V, 0.32V Dropout, CMOS, PDSO6, LEAD FREE, HSOP-6
R1173S231B	RICOH	获取价格	Super low on resistance/Low voltage LDO
R1173S231B-E2	RICOH	获取价格	Fixed Positive LDO Regulator, 2.3V, 0.15V Dropout, CMOS, PDSO6, HSOP-6
R1173S231D	RICOH	获取价格	Super low on resistance/Low voltage LDO
R1173S231D-E2-F	RICOH	获取价格	Fixed Positive LDO Regulator, 2.3V, 0.32V Dropout, CMOS, PDSO6, LEAD FREE, HSOP-6
R1173S241B	RICOH	获取价格	Super low on resistance/Low voltage LDO
R1173S241B-E2-F	RICOH	获取价格	Fixed Positive LDO Regulator, 2.4V, 0.32V Dropout, CMOS, PDSO6, LEAD FREE, HSOP-6
R1173S241D	RICOH	获取价格	Super low on resistance/Low voltage LDO

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