RP122 Series
Low Noise and Low Supply Current 400mA LDO Regulator
RP122 Series
Low Noise and Low Supply Current 400mA LDO Regulator
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Provides at-a-glance product features, functions, and concepts.
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Description
The RP122 is a LDO regulator that provides low output noise, high ripple rejection and fast response characteristics, achieved by low supply current. This device is suitable not only for noise-sensitive applications such as high-performance analog circuits, but also for various applications.
Key Benefits
- Achieves Low Noise, High PSRR and Fast Response.
- Provides Saving Space by Adopting of Small Package without Noise Bypass Capacitor.
- Provides Long-Duration of Operation for Battery-powered Equipment by Low Supply Current of 9.5 µA (Typ.), despite the low-noise LDO.
Spec
| Standard | |
|---|---|
| Input Voltage Range | 1.9 V to 5.5 V (6.0 V) |
| Operating Temperature Range | -40°C to 85°C (125°C) |
| Supply Current | Typ. 9.5 µA |
| Standby Current | Typ. 0.01 μA |
| Output Voltage Range | 1.2 V to 4.8 V (0.1 V step) |
| Output Voltage Accuracy | ±0.8% (Ta = 25°C, VSET ≥ 1.8 V) |
| Dropout Voltage | Typ. 0.145 V (IOUT = 400 mA, VSET = 2.8 V, RP122Z) Typ. 0.170 V (IOUT = 400 mA, VSET = 2.8 V, RP122K/N) |
| Output Current | 400 mA |
| Ripple Rejection | Typ. 90 dB (f = 1 kHz) Typ. 85 dB (f = 10 kHz) Typ. 65 dB (f = 100 kHz) |
| Output Noise Voltage | Typ. 8 µVrms (IOUT = 250 mA) |
| Package | WLCSP-4-P8, WLCSP-4-P12, DFN(PL)1010-4B, SOT-23-5 |
Protections / Functions
| TSD | Reverse | Current Limit | ISC | Inrush | ECO mode | Auto Discharge | External Driver | PGOOD | Soft Start |
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Functional Description
| TSD | Thermal Shutdown Function |
|---|---|
| Reverse Current Protection | Reverse Current Protection |
| Current Limit | Overcurrent Protection |
| ISC | Short Current Protection |
| Inrush Current Limit | Inrush Current Protection |
| Constant Slope | Constant Slope Function |
| ECO mode | ECO Function |
| Auto Discharge | Auto Discharge Function |
| External Driver | External Output Driver Transistor |
Technical Documents
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SPICE model download
You can download the product's SPICE model. Login/registration to myNISD is required to download.
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Ripple Rejection vs. Frequency
VSET=2.8 V, VIN=3.8 V, COUT=Ceramic 1.0 µF, Ripple=0.2 Vp-p
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| RP122Zxx1x-TR-T |
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WLCSP-4-P8 | See datasheet | RP122Z-T |
| RP122Zxx4x-TR-T |
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WLCSP-4-P12 | See datasheet | RP122Zxx4-T |
| RP122Kxx1x-TR |
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DFN(PL)1010-4B | See datasheet | RP122K |
| RP122Nxx1x-TR-FE |
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SOT-23-5 | See datasheet | RP122N-FE |
- Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
FAQ
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support
RP122 Series