RP105 Series

Low Voltage 400mA LDO Regulator with dual input pin

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Description

The RP105 Series are CMOS-based LDO regulators featuring 400mA output with dual input pin. The input voltage can correspond from 0.9V by the inputting voltage into VBIAS. The UVLO function will lock out the internal circuit, if the input voltage is less than the UVLO voltage. Due to a built-in Nch. transistor with low on-resistance of 0.4Ω (at VSET=0.8V), RP105 provides a low dropout voltage. RP105 also has an excellent line transient response. In addition to SOT-23-5 package, 1.2mm square DFN(PL)1212-6 package and DFN1212-5 package are also available.

Spec

	Consumer
Input Voltage Range	VBIAS 2.4 V to 5.25 V (6.0 V), VSET+1.6 V to 5.25 V (VSET ≥ 0.8 V) VIN Ver. B,D: 0.9 V to VBIAS (VSET < 0.8 V), VSET + 0.1 V to VBIAS (VSET ≥ 0.8 V) Ver. E, F: 0.9 V to VBIAS
Operating Temperature Range	-40°C to 85°C (125°C)
Supply Current	Typ. 28 µA
Standby Current	Typ. 0.1 µA
Output Voltage Range	0.6 V to 1.5 V (0.1 V step)
Output Voltage Accuracy	±1.0% (Ta = 25°C)
Output Voltage Temperature Coefficient	Typ. ±50 ppm/°C
Dropout Voltage	DFN1212-5: Typ. 105 mV (IOUT = 400 mA, VSET = 1.5 V, VBIAS = 3.6 V)
Line Regulation	Typ. 0.02%/V
Ripple Rejection	Typ. 80 dB (f = 1 kHz, VIN Ripple) Typ. 50 dB (f = 1 kHz, VBIAS Ripple)
Package	DFN1212-5, DFN(PL)1212-6, SOT-23-5

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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
RP105Kxx1x-TR	DFN(PL)1212-6	See datasheet	RP105K
RP105Lxx1x-TR	DFN1212-5	See datasheet	RP105L
RP105Nxx1x-TR-FE	SOT-23-5	See datasheet	RP105N-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