NCP1402: Boost Converter, PFM, Micropower, 200 mA
The NCP1402 series are monolithic micropower step-up DC to DC converter that are specially designed for powering portable equipment from one or two cell battery packs.These devices are designed to start-up with a cell voltage of 0.8 V and operate down to less than 0.3 V. With only three external components, this series allow a simple means to implement highly efficient converters that are capable of up to 200 mA of output current at Vin = 2.0 V, VOUT = 3.0 V. Each device consists of an on-chip PFM (Pulse Frequency Modulation) oscillator, PFM controller, PFM comparator, soft-start, voltage reference, feedback resistors, driver, and power MOSFET switch with current limit protection. Additionally, a chip enable feature is provided to power down the converter for extended battery life.The NCP1402 device series are available in the Thin SOT-23-5 package with five standard regulated output voltages. Additional voltages that range from 1.8 V to 5.0 V in 100 mV steps can be manufactured.
特性- Extremely Low Start-Up Voltage of 0.8 V
- Operation Down to Less than 0.3 V
- High Efficiency 85% (Vin = 2.0 V, VOUT = 3.0 V, 70 mA)
- Low Operating Current of 30 µA (VOUT = 1.9 V)
- Output Voltage Accuracy +/- 2.5%
- Low Converter Ripple with Typical 30 mV
- Only Three External Components Are Required
- Chip Enable Power Down Capability for Extended Battery Life
- Micro Miniature Thin SOT–23–5 Packages
- Pb-Free Packages are Available
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应用- Cellular Telephones
Pagers
Personal Digital Assistants (PDA)
Electronic Games
Portable Audio (MP3)
Camcorders
Digital Cameras
Handheld Instruments
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数据表 (1)
产品订购型号
| 产品 | 状况 | Compliance | 具体说明 | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| NCP1402SN19T1G | Active | Pb-free
Halide free | Boost Converter, PFM, Micropower, 200 mA, 1.9 V | TSOP-5 / SOT-23-5 | 483 | 1 | Tape and Reel | 3000 | $0.2667 |
| NCP1402SN27T1G | Active | Pb-free
Halide free | Boost Converter, PFM, Micropower, 200 mA, 2.7 V | TSOP-5 / SOT-23-5 | 483 | 1 | Tape and Reel | 3000 | $0.2667 |
| NCP1402SN30T1G | Active | Pb-free
Halide free | Boost Converter, PFM, Micropower, 200 mA, 3.0 V | TSOP-5 / SOT-23-5 | 483 | 1 | Tape and Reel | 3000 | $0.2667 |
| NCP1402SN33T1G | Active | Pb-free
Halide free | Boost Converter, PFM, Micropower, 200 mA, 3.3 V | TSOP-5 / SOT-23-5 | 483 | 1 | Tape and Reel | 3000 | $0.2667 |
| NCP1402SN40T1G | Active | Pb-free
Halide free | Boost Converter, PFM, Micropower, 200 mA, 4.0 V | TSOP-5 / SOT-23-5 | 483 | 1 | Tape and Reel | 3000 | $0.2667 |
| NCP1402SN50T1G | Active | Pb-free
Halide free | Boost Converter, PFM, Micropower, 200 mA, 5.0 V | TSOP-5 / SOT-23-5 | 483 | 1 | Tape and Reel | 3000 | $0.2667 |
订购产品技术参数
| Product | Topology | Control Mode | VCC Min (V) | VCC Max (V) | VO Typ (V) | IO Typ (A) | Efficiency (%) | fSW Typ (kHz) |
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| NCP1402SN19T1G | Step-Up | Voltage Mode | 0.8 | 5.5 | 1.9 | Up to 0.2 | 85 | Up to 200 |
| NCP1402SN27T1G | Step-Up | Voltage Mode | 0.8 | 5.5 | 2.7 | Up to 0.2 | 85 | Up to 200 |
| NCP1402SN30T1G | Step-Up | Voltage Mode | 0.8 | 5.5 | 3 | Up to 0.2 | 85 | Up to 200 |
| NCP1402SN33T1G | Step-Up | Voltage Mode | 0.8 | 5.5 | 3.3 | Up to 0.2 | 85 | Up to 200 |
| NCP1402SN40T1G | Step-Up | Voltage Mode | 0.8 | 5.5 | 4 | Up to 0.2 | 85 | Up to 200 |
| NCP1402SN50T1G | Step-Up | Voltage Mode | 0.8 | 5.5 | 5 | Up to 0.2 | 85 | Up to 200 |
