RICOH RP170x Series 300mA 10V Input LDO Data Sheet Owner's Manual

RP170x Series 300m A 10V Input LDO

The RP170x Series are CMOS-based LDO regulators featuring 300m A output current. Due to the 10V maximum input voltage, RP170x can be used for 2 cell lithium-ion battery powered portable appliances and home appliances. RP170x has a fold-back protection circuit, a thermal shutdown circuit and a constant slope circuit. SOT-23-5 and SOT-89-5 with high power dissipation packages are available.

FEATURES • Supply Current (ISS) ······················Typ. 23μA (VIN=SET VOUT+1.0V) • Temp. coeff. of Output Voltage ·······Typ. ± 80ppm/°C • Standby Current (Istandby) ·················Typ. 0.1μA (VIN=10V, CE="L") • Line Regulation·······························Typ. 0.02%/V • Dropout Voltage (VDIF) ····················Typ. 0.77V (IOUT=300m A, VOUT=2.8V) • Fold-back Protection Circuit············Current limit Typ. 40m A • Ripple Rejection (RR)·····················Typ. 70d B (f=1k Hz) • Constant Slope Circuit • Input Voltage Range (VIN) ···············2.6V to 10.0V • Thermal Shutdown Circuit ··············Stops at 165°C • Output Voltage Range (VOUT)··········1.2V to 6.0V (internally fixed) • Auto-Discharge function ·················D Version • Output Voltage Accuracy ················± 1% • Packages ········································SOT-23-5, SOT-89-5

• Ceramic capacitors can be used. ···1μF or more

(The above shows specification at Topt=25°C. Design assurance value at -40°C ≤ Topt ≤ 85°C is also available. For details, please refer to the datasheet.)

BLOCK DIAGRAMS RP170xxx1B RP170xxx1D (Without Auto-Discharge function) (With Auto-Discharge function)

VDD VOUT VDD VOUT

ro po ut ol ta ge IF (V

Vref Vref

Current Limit Current Limit Thermal Shutdown Thermal Shutdown

CE GND CE GND

SELECTION GUIDES

.xx. : Specify the output voltage within the range of 1.2V (.12.) to 6.0V (.60.)

Halogen Free Package Q'ty per Reel Part No.

in 0.1V steps.

SOT-23-5 3,000 pcs RP170N.xx.1.∗ -TR-FE

.∗ : Select from (.B.) without auto-discharge function or

SOT-89-5 1,000 pcs RP170H.xx.1.∗ -T1-FE (.D.) with auto-discharge function.

PACKAGES (Top View) TYPICAL CHARACTERISTIC

SOT-23-5 SOT-89-5 RP170x301x Dropout Voltage vs. Output Current

1 VDD 1 VOUT 0.3 2 GND 2 GND

3 CE 3 CE

4 NC 4 NC 5 VOUT 5 VDD

Output Current IOUT (m A)

APPLICATIONS • Power source for hand-held communication equipment and laptop personal computers • Power source for home appliances • Power source for digital SLRs and VCRs • Power source for battery-powered equipment

No.EK-205-120403 CMOS LDO Regulator