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R1121 Series
8V Input 150mA Voltage Regulator (LDO Regulator)

Product Specifications

The R1121 Series are CMOS-based LDO regulators featuring 150mA output. (Under 1.5V ≤ VSET ≤ 1.7V conditions, 100mA)
R1121 has a high maximum input voltage rating of 8V, which makes the product ideally suitable for use in power source for various equipment, including hand-held communication equipment. The polarity of the CE pin can be selected. Two different pin layout as R1111 and R1121 are available.

FEATURES

Input Voltage Range (Absolute maximum rating) 2.0 V ~ 8.0 V (9.0 V)
Supply Current TYP. 35 µA
Standby Mode TYP. 0.1 µA
Dropout Voltage TYP. 0.2 V (IOUT = 100 mA)
Ripple Rejection TYP. 70 dB (f = 1 kHz)
Output Voltage Range 1.5 V ~ 5.0 V (0.1 V steps)
Output Voltage Accuracy ±2.0%
Temperature-Drift Coefficient of Output Voltage TYP. ±100 ppm/°C
Line Regulation TYP. 0.05%/V
Built-in chip enable circuit 2 types; A: active “L”, B: active “H”
Package SOT-23-5
Pin-out Similar to the TK112,TK111

APPLICATION INFORMATION

TYPICAL CHARACTERISTICS

R1121N301B Dropout Voltage vs. Output Current

PIN DESCRIPTION

SOT-23-52.9 mm × 2.8 mm

SOT-23-5

1 VOUT
2 GND
3 VDD
4 CE or CE
5 NC

R1121 Series for Consumer

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

SELECTION GUIDE

The output voltage, the active type for the ICs can be selected at the user's request.

Product Name   Package Quantity per Reel
R1121Nxx1#-TR-FE Consumter SOT-23-5 3,000
  • xx … The output voltage can be designated in the range from 1.5V(15) to 5.0V(50) in 0.1V steps.
  • # … Designation of Active Type
    A: "L" active
    B: "H" active

DOCUMENT/CONTACT

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Package *1 Marking Reliability *2
SOT-23-5 R1121N R1121N (-FE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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