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.
|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)
Fixed Output Type
R1173x301x Dropout Voltage vs. Output Current
|1||ADJ or NC|
|3||ADJ or NC|
*) 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.
|3||ADJ or NC|
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.
The output voltage, auto discharge function, package for the ICs can be selected at the user’s request.
|Product Name||Package||Quantity per Reel|
|Package *1||Marking||Reliability *2|
*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.