| R1161X Series |
3-MODE 300mA LDO REGULATOR |
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| The R1161x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply current, and low ON-resistance. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, and a chip enable circuit. These ICs perform with low dropout voltage and a chip enable function. To prevent the destruction by over current, current limit circuit is included. The R1161x Series have 3-mode. One is standby mode with CE or standby control pin. Standby mode realizes ultra small consumption current off mode. Other two modes are realized with ECO pin TM. Fast Transient Mode (FT mode) and Low Power Mode (LP mode) are alternative with. Consumption current is reduced at Low Power Mode compared with Fast Transient Mode. Output voltage is maintained between FT mode and LP mode. The output voltage of these ICs is internally fixed with high accuracy. Since the packages for these ICs are SOT-23-5, SON-6, and HSON-6, high density mounting of the ICs on boards is possible. |
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| Feature |
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| ● |
Typ. 3.5µA (Low Power Mode, Vout<1.6V), Typ. 80µA (Fast Transient Mode, Vout<1.8V) Typ. 60µA (Fast Transient Mode, Vout≥1.8V) |
| ● |
TYP. 0.1µA |
| ● Low Dropout Voltage |
Typ. 0.48V (IOUT=300mA Output Voltage=1.0V Type) Typ. 0.31V (IOUT=300mA Output Voltage=1.5V Type) Typ. 0.23V (IOUT=300mA Output Voltage=3.0V Type) |
| ● |
Typ. 65dB (f=1kHz, FT Mode) |
| ● |
TYP. ±100ppm/°C |
| ● Excellent Line Regulation | TYP. 0.05%/V |
| ● High Accuracy Output Voltage | ±2.0% (±3.0% at LP Mode) |
| ● Small Package | SOT-23-5 (Super Mini-mold), SON-6, HSON-6 |
| ● Output Voltage | Stepwise setting with a step of 0.1V in the range of 0.8V to 3.3V is possible |
| ● Input Voltage | Min. 1.40V (Vout≥1.0V), 1.45V (Vout<1.0V) |
| ● Built-in Fold-back protection circuit | Typ. 50mA (Current at short mode) |
| ● External Capacitors | CIN=COUT=Tantalum 1.0µF (VOUT<1.0V) CIN=COUT=Ceramic 1.0µF (VOUT≥1.0V) |
| Applications | |
| ● Precision Voltage References. | |
| ● Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment. | |
| ● Power source for battery-powered equipment. | |
| Data Sheet(PDF) | |
| R1161X Series | |