R1173 Series

1A Voltage Regulator

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Description

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.

Spec

	Consumer
Input Voltage Range	1.4 V to 6.0 V (6.5 V)
Operating Temperature Range	-40°C to 85°C (125°C)
Supply Current	Typ. 60 µA
Standby Current	Typ. 0.1 µA (Topt = 25°C)
Output Voltage Range	Internally Fixed Ver.: 0.8 V to 5.0 V (0.1 V step) Externally Adjustable Ver.: 1.0 V to VIN
Output Voltage Accuracy	±2.0% (Ta = 25°C)
Output Voltage Temperature Coefficient	Typ. ±100 ppm/°C
Dropout Voltage	Typ. 0.32 V (VOUT = 1.5 V, IOUT = 1 A) Typ. 0.18 V (VOUT = 2.8 V, IOUT = 1 A)
Line Regulation	Typ. 0.05%/V
Load Regulation	Typ. -2 mV (IOUT = 300 mA) Typ. -3 mV (IOUT = 1 A)
Output Current	1 A
Ripple Rejection	Typ. 70 dB (VOUT = 2.8 V)
Package	SOT-89-5, HSON-6, HSOP-6J

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TSD	Reverse	Current Limit	ISC	Inrush	Constant Slope	ECO mode	Auto Discharge	External Driver	PGOOD

Functional Description

Quality &
Packages

Product Name	Package	Marking	Reliability
R1173Dxx1x-TR-FE	HSON-6	See datasheet	R1173D-FE
R1173Hxx1x-T1-FE	SOT-89-5	See datasheet	R1173H-FE
R1173Sxx1x-E2-FE	HSOP-6J	See datasheet	R1173S-FE

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

TSD	Thermal Shutdown Function
Reverse Current Protection	Reverse Current Protection
Current Limit	Overcurrent Protection
ISC	Short Current Protection
Inrush Current Limit	Inrush Current Protection
Constant Slope	Constant Slope Function
ECO mode	ECO Function
Auto Discharge	Auto Discharge Function
External Driver	External Output Driver Transistor