R1172N331B RICOH Co.,Ltd., R1172N331B Datasheet

R1172N331B

Manufacturer Part Number

R1172N331B

Description

Manufacturer

RICOH Co.,Ltd.

Datasheets

1.R1172D121D.pdf (36 pages)

2.R1172N331B.pdf (36 pages)

Specifications of R1172N331B

Date_code

07+

Packing_info

SOT-153

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

R1172N331B-TR-F

Manufacturer:

RICOH/理光

Quantity:

20 000

Current page: 1 of 36
Download datasheet (2Mb)

OUTLINE

FEATURES

APPLICATIONS

low dropout, 1A output current capability. Even the output voltage is set at 1.5V, on resistance of internal FET is

typically 0.32 . Therefore, applications that require a large current at small dropout are suitable for the R1172x

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 of R1172 is fixed in the IC.

dissipation, high density mounting of the ICs on boards is possible.

SUPER LOW ON RESISTANCE / LOW VOLTAGE 1A LDO

The R1172x Series are CMOS-based positive voltage regulator ICs. The R1172x Series have features of super

Since the packages for these ICs are SOT-23-5, SOT-89-5, HSON-6, and HSOP-6J with high power

Output Current ............................................................1A

Supply Current..............................................................Typ. 60 A

Standby Current ..........................................................Typ. 0.1 A

Input Voltage Range ...................................................1.4V to 6.0V

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

Dropout Voltage ............................................................Typ. 0.32V (V

Ripple Rejection ...........................................................Typ. 70dB (V

Output Voltage Accuracy .............................................. 2.0%

Temperature-Drift Coefficient of Output Voltage...........Typ. 100ppm/ C

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

Load Regulation ..........................................................Typ. 15mV at I

Packages ....................................................................SOT-23-5, SOT-89-5, HSON-6, HSOP-6J

Built-in Inrush current limit circuit ................................Typ. 500 mA

Built-in Fold-Back Protection Circuit ...........................Typ. 250mA (Current at short mode)

Built-in Thermal Shutdown Circuit ..............................Thermal Shutdown Temperature ; Typ. 150 C

Built-in Auto Discharge Function ................................D version

Output capacitors ........................................................C

Local Power source for Notebook PC.

Local Power source for portable communication equipments, cameras, and VCRs.

Local Power source for home appliances.

Typ. 0.18V (V

Released Temperature ; Typ. 120 C

0.8V to 5.0V

R1172x SERIES

OUT

Tantalum 4.7 F (V

Ceramic 4.7 F (V

OUT

2.8V)

1.5V, I

2.8V, I

300mA, Typ. 50mV at I

OUT

1A)

OUT

< 1.0V)

1.0V)

NO.EA-122-080116

OUT

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