RICOH R1170x Series 800mA LDO Data Sheet

R1170x Series 800m A LDO

The R1170x Series are CMOS-based LDO regulators featuring 800m A output. The CMOS process provides both high output current and low supply current. The dropout voltage is significantly lower than bipolar regulators. The CE pin can switch the regulator into standby mode. In addition to a fold-back protection circuit built into conventional LDO regulators, R1170x has a thermal shutdown circuit. Ceramic capacitors can be used.

FEATURES • Supply Current (ISS) ····················Typ. 80μA (VIN=SET VOUT+1.0V) • Temp. coeff. of Output Voltage ·······Typ. ± 100ppm/°C • Standby Current (Istandby) ·············Typ. 0.1μA (VIN=6.0V, in standby) • Line Regulation·······························Typ. 0.05%/V • Dropout Voltage (VDIF) ················Typ. 0.12V (IOUT=300m A, VOUT=2.8V) • Fold-back Protection Circuit············Current limit Typ. 40m A • Ripple Rejection (RR)·················Typ. 50d B (f=1k Hz) • Thermal Shutdown Circuit ··············Stops at 150°C • Input Voltage Range (VIN) ···········Max. 6.0V • Packages ········································HSON-6, SOT-89-5, HSOP-6J • Output Voltage Range (VOUT)······1.5V to 5.0V (internally fixed) • Ceramic capacitors can be used. ···10μF or more • Output Voltage Accuracy ············± 2%

BLOCK DIAGRAMS R1170xxx1A R1170xxx1B

CE pin "L" active) (CE pin "H" active)

VDD VOUT VDD VOUT

ro lt IF (V

Vref Vref

Current Limit Current Limit Thermal Shutdown Thermal Shutdown

CE GND CE GND

SELECTION GUIDES

Part No. .xx. : Specify the output voltage within the range of 1.5V (.15.) to 5.0V (.50.)

Halogen Free Package Q'ty per Reel

in 0.1V steps.

HSON-6 3,000 pcs R1170D.xx.1.∗ -TR-FE

.∗ : Select the polarity of the CE pin from (.A.) "L" active or (.B.) "H" active.

SOT-89-5 1,000 pcs R1170H.xx.1.∗ -T1-FE HSOP-6J 1,000 pcs R1170S.xx.1.∗ -E2-FE

PACKAGES (Top View) TYPICAL CHARACTERISTIC

HSON-6 SOT-89-5 HSOP-6J R1170x301B Dropout Voltage vs. Output Current

1 VOUT 1 CE or CE 1 VOUT

2 VOUT 2 GND 2 GND

3 CE or CE 3 NC 3 CE or CE

4 GND 4 VDD 4 NC

5 VDD 5 VOUT 5 GND ∗1 6 VDD 6 VDD ∗) The tab and tab suspension leads on back side are substrate level (GND).

Output Current IOUT(m A)

∗1) The VOUT pin and VDD pin must be wired each other when it is mounted on board.

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

No.EK-084-101001 CMOS LDO Regulator