LM3262
- Operates from a Single Li-Ion Cell (2.5 V to 5.5 V)
- 6-MHz (Typical) PWM Switching Frequency
- Adjustable Output Voltage (0.4 V to 3.6 V)
- 800-mA Maximum Load Capability (up to 1 A in Bypass Mode)
- High Efficiency (93% Typical at 3.8 VIN, 3.4 VOUT at 500 mA)
- Automatic ECO/PWM/BP Mode Change
- Current and Thermal Overload Protection
- Multi-Function VCON Pin
(Eliminates Need for Separate BPEN Control) - Soft-Start Function
- Small Chip Inductor in 0805 (2012) Case Size
- 25-µA (Typical) IQ in Sleep Mode
- 5-µs (Typical) Rise Time and Fall Time for
2-V Step - 9-Pin DSBGA Package
The LM3262 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single lithium-ion cell; however, it may be used in many other applications such as USB-powered portable applications. The device 2.5-V to 5.5-V input voltage can be stepped down to an adjustable output voltage range from 0.4 V to 3.6 V. Output voltage is set using a VCON analog input which enables improved RF-stage PA efficiencies.
The LM3262 offers five modes of operation. In pulse width modulation (PWM) mode the device operates at a fixed frequency of 6 MHz (typical), which minimizes RF interference at medium-to-low loads. At light load, the device enters into ECO mode automatically and operates with reduced switching frequency. In ECO mode, the quiescent current is reduced and extends the battery life. Shutdown mode turns the device off and reduces battery consumption to 0.1 µA (typical). At low-battery condition, bypass mode reduces the voltage dropout to less than 50 mV (typical). The device also features a sleep mode.
The LM3262 is available in a 9-pin, lead-free DSBGA package. A high-switching frequency (6 MHz) allows use of only three tiny surface-mount components: one inductor and two ceramic capacitors.
For all available packages, see the orderable addendum at the end of the data sheet.기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM3262 6-MHz, 800-mA Miniature, Adjustable, Step-Down DC-DC Converter With Auto Bypass for RF Power Amplifiers datasheet (Rev. O) | PDF | HTML | 2015/12/30 |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| User guide | LM3262 DSBGA Evaluation Board (Rev. B) | 2013/04/30 |
설계 및 개발
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YFQ) | 9 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치