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R1173 Series
1A Voltage Regulator (LDO Regulator)

Product Specifications

The R1173 Series are CMOS-based LDO regulators featuring 1A output. R1173 offers almost the same basic performances as the R1172 Series. But R1173 offers an excellent load regulation. While the output voltage is internally set in the R1172 Series, the R1173 Series is available in two versions: standard version in which the output voltage is internally set and the adjusted version in which it is set with external resistors. For this reason, when the output voltage is not determined yet, the adjusted version can be used for advanced production. After the final determination of the voltage is made, it can be replaced with the standard version.

FEATURES

Input Voltage Range (Absolute maximum rating) 1.4 V to 6.0 V (6.5 V)
Supply Current Typ. 60 µA
Standby Current Typ. 0.1 µA
Output Voltage Range 0.8 V to 5.0 V (0.1V steps) (R1173xxx1)
1.0 V to VIN (R1173x001)
Output Current 1 A
Dropout Voltage Typ. 0.32V (VOUT=1.5V, IOUT=1A)
Typ. 0.18V (VOUT=2.8V, IOUT=1A)
Ripple Rejection Typ. 70dB (VOUT=2.8V)
Output Voltage Accuracy ±2.0%
Temperature-drift Coefficient of Output Voltage Typ. ±100 ppm/°C
Line Regulation Typ. 0.05%/V
Load Regulation Typ. −2 mV (IOUT=300mA)
Typ. −3 mV (IOUT=1A)
Packages SOT-89-5, HSON-6, HSOP-6J
Low inrush current at turning-on Typ. 500 mA
Built-in Thermal Shutdown Circuit Stops at 150°C
Built-in Current Limit Circuit Typ. 250 mA
Output capacitors CIN=Ceramic 4.7 µF
COUT=Tantalum 4.7 µF (VOUT<1.0V)
COUT=Ceramic 4.7 µF (VOUT ≥ 1.0V)

APPLICATION INFORMATION

Fixed Output Type

C1,C2: 4.7µF or more

TYPICAL CHARACTERISTICS

R1173x301x Dropout Voltage vs. Output Current

PIN DESCRIPTION

SOT-89-54.5 mm × 4.35 mm

SOT-89-5

1 ADJ or NC
2 GND
3 CE
4 VDD
5 VOUT
HSON-62.9 mm × 3.0 mm

HSON-6

1 VOUT**
2 VOUT**
3 ADJ or NC
4 GND
5 CE
6 VDD

*) The tab and tab suspension leads on back side are substrate level (GND).
**) The VOUT pin must be wired each other when it is mounted on board.

HSOP-6J5.02 mm × 6.0 mm

HSOP-6J

1 VOUT
2 GND**
3 ADJ or NC
4 CE
5 GND**
6 VDD
**) The GND pin must be wired each other when it is mounted on board.

R1173Series for Consumer

APPLICATIONS

  • Local Power source for Notebook PC
  • Local Power source for portable communication equipments, cameras, and videos
  • Local Power source for home appliances

PRODUCT LONGEVITY PROGRAM

R1173S operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The output voltage, auto discharge function, package for the ICs can be selected at the user’s request.

Product Name   Package Quantity per Reel
R1173Dxx1#-TR-FE Consumter HSON-6 3,000
R1173Hxx1#-T1-FE Consumter SOT-89-5 1,000
R1173Sxx1#-E2-FE
ConsumterPLP HSOP-6J 1,000
  • xx … The output voltage can be designated in the range from 0.8V(08) to 5.0V(50) in 0.1V steps.
    External Setting Type: 00 (ADJ pin voltage is fixed at 1.0V.)
  • # … The auto discharge function at off state are options as follows.
    B: "H" active, without auto discharge function at off state
    D: "H" active, with auto discharge function at off state

DOCUMENT/CONTACT

Purchase

Technical Support

Package *1 Marking Reliability *2
HSON-6 R1173D R1173D (-FE)
SOT-89-5 R1173H R1173H (-FE)
HSOP-6J R1173S R1173S (-FE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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