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RP124 Series
Low Supply Current 100mA LDO Regulator with Battery Monitor
The RP124 is an LDO regulator with a battery monitor (BM) featuring ultra-low supply current.
The battery monitor has a function which divides the input voltage (VIN) into 1/3 or 1/4. The battery charge remaining can be monitored by MCU. The buffering output enables directly inputting a signal into the low voltage A/D converter (ADC) with built-in MCU.
- Achieving Low Supply Current of 0.3 µA, Longer Battery Life and Downsizing
- Requiring Only Three External Capacitors and Suitable for Space-saving Mounting for the Smaller Packages
Specs & Datasheets
| Consumer | |
|---|---|
| Input Voltage Range | 1.7 V to 5.5 V (6.5 V) |
| Operating Temperature Range | -40°C to 85°C (125°C) |
| Supply Current | Typ. 0.2 µA (LDO Section) |
| Output Voltage Range | 1.2 V, 1.5 V, 1.8 V, 2.1 V, 2.2 V, 2.3 V, 2.4 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.1 V, 3.3 V, 3.6 V |
| Output Voltage Accuracy | ±0.8% (Ta = 25°C) |
| Output Current | 100 mA |
| Package | DFN1212-6, SOT-23-5 |
| BM Output Voltage | VIN/3 (RP124xxx3x) VIN/4 (RP124xxx4x) |
| BM Output Voltage Accuracy | ±20 mV |
| BM Output Current | Typ. 0.1 µA |
Protections / Functions
| TSD | Reverse | Current Limit | ISC | Inrush | Constant Slope | ECO mode | Auto Discharge | External Driver |
|---|---|---|---|---|---|---|---|---|
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|
|
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Technical Documents
RP124xxxxE Typical Application
LDO Supply Current vs. Temperature, RP124x18xx, VIN = 2.8 V
CIN = Ceramic 1.0 µF, COUT = Ceramic 1.0 µF
BM Supply Current vs. Temperature, RP124xxx4x, VIN = 3.6 V
CIN = Ceramic 1.0 µF, CBM = Ceramic 0.1 µF
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| RP124Lxxxx-TR |
|
DFN1212-6 | RP124L | RP124L |
| RP124Nxxxx-TR-FE |
|
SOT-23-5 | RP124N | RP124N-FE |
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Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.
Sample / Buy
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Authorized Distributors
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
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 |