RICOH R1111N SERIES Owner's Manual and User Guide
Summary
Optimize your portable electronics with this high-performance R1111N Series CMOS voltage regulator IC. Designed for demanding applications such as cellular phones, cameras, and general battery-powered equipment, these regulators offer superior accuracy (1.5V to 5.0V fixed output), extremely low supply current, and excellent transient response capabilities in a compact SOT-23-5 package. This manual provides comprehensive technical documentation, including electrical specifications, operational guidelines, and detailed application notes, ensuring precise selection and reliable integration for engineers building power-sensitive hardware.
Page 1 Text Content
R1111N SERIES
LOW NOISE 150m A LDO REGULATOR
NO.EA-057-111018
OUTLINE The R1111N Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON-resistance, and high Ripple Rejection. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors, a current limit circuit, and a chip enable circuit. These ICs perform with low dropout voltage and a chip enable function. The line transient response and load transient response of the R1111N Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. The output voltage of these ICs is fixed with high accuracy. Since the package for these ICs is SOT-23-5 (Mini-mold) package , high density mounting of the ICs on boards is possible.
FEATURES • Supply Current ............................................................Typ. 35μA • Standby Mode .............................................................Typ. 0.1μA • Dropout Voltage ..........................................................Typ. 0.2V (IOUT=100m A) • Ripple Rejection..........................................................Typ. 70d B(f=1k Hz) • Output Voltage ............................................................1.5V to 5.0V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) • Output Voltage Accuracy.............................................±2.0% • Low Temperature-Drift Coefficient of Output Voltage..Typ. ±100ppm/°C • Line Regulation ...........................................................Typ. 0.05%/V • Package ....................................................................SOT-23-5 • Built-in chip enable circuit ( 2 types; A: active “L”, B: active “H”) • Built-in Fold Back Protection Circuit Typ. 50m A (Current at short mode) • Pin-out.........................................................................Similar to the LP2980
APPLICATIONS • Power source for cellular phones such as GSM, CDMA and various kinds of PCSs. • Power source for electrical appliances such as cameras, VCRs and camcorders. • Power source for battery-powered equipment.
Page Summary Contents For RICOH R1111N SERIES Owner's Manual and User Guide
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 18 |
| File Size | 320.55 KB |
| Published | May 29, 2026 |
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