Description

Electronic Component Model: R1141Q181D is an IC chip used for various applications as a power source. It features a low supply current, standby mode with minimal power consumption, and a low dropout voltage. The chip has excellent ripple rejection and a stable output voltage range of 1.5V to 4.0V. It also includes a built-in chip enable circuit and fold-back protection circuit for added safety. The package is SC-82AB, a super mini-mold. This model is commonly used as a power source for cellular phones, electrical appliances, battery-powered equipment, and as a stable voltage reference.

Specifications and features

• Supply Current: Typ. 90μA
• Standby Mode: Typ. 0.1μA
• Dropout Voltage: Typ. 0.15V (IOUT=100mA, Output Voltage=3.0V Type)
• Ripple Rejection: Typ. 75dB (VOUT ≤ 2.4V), Typ. 70dB (VOUT > 2.5V) (f=1kHz)
• Temperature-Drift Coefficient of Output Voltage: Typ. ±100ppm/°C
• Line Regulation: Typ. 0.02%/V
• Output Voltage Accuracy: ±1.5% or ±30mV (VOUT ≤ 2.0V)
• Excellent Dynamic Response
• Package: SC-82AB (Super Mini-mold)
• Output Voltage Range: 1.5V to 4.0V (0.1V steps)
• Built-in Chip Enable Circuit (B/D: active high)
• Built-in Fold-back Protection Circuit: Typ. 40mA (Short Current)
• Ceramic capacitor can be used for Output pin: Recommended value is 2.2μF or more.

Application Scenarios

R1141Q181D is widely used in various applications such as:

• Power source for cellular phones such as GSM, CDMA, and various kinds of PCS.
• Power source for electrical appliances such as cameras, VCRs, camcorders, and hand-held communication equipment.
• Power source for battery-powered equipment.
• Very stable Voltage Reference.

Comparison

• Low supply current
• Low standby mode power consumption
• Low dropout voltage
• Excellent ripple rejection
• Wide output voltage range
• Built-in chip enable and fold-back protection circuit

• Requires the use of a ceramic capacitor for the output pin
• Output voltage accuracy may have a tolerance of ±1.5% or ±30mV