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概述
The LP3316H is a Boost converter that has programmable output voltage by feedback resistors. The device has a 2A N-channel MOSFET and the Boost converter switches at a constant switching frequency 1.1MHz allowing low-profile inductor and ceramic capacitors. The output voltage is programmed with two resistors connected from VOUT to GND and the middle point is connected to FB pin. The voltage at FB pin is regulated at 1.24V. The device can be enabled or disabled at EN pin.
LP3316H offers low noise, small size, high efficiency and robust protections. The protection features include under-voltage lockout (UVLO), internal soft-start, Boost cycle-by-cycle current limit, over voltage protection (OVP) as well as thermal shutdown.
The LP3316H is available in a SOT23-5L package.
应用
◆ Smart phones
◆ Portable devices with LED display
◆ Portable media players
数据参数
数据参数
输入电压
2.7-5.5
最大输出电压(V)
30
工作模式
Boost
开关电流(A)
2
开关频率 (Hz)
1.1M
FB电压(mV)
1240
产品特征/功能
Large current,High efficiency,Low size,OCP,OTP
封装
SOT23-5
特征
特征
◆ Input voltage range: 2.7V to 5.5V
◆ Output voltage up to 30V
◆ 1.1MHz Boost switching frequency
◆ Dedicated pin to support enable/disable
◆ Integrated 2Aswitch FET
◆ 1.24V reference voltage for VOUT programming
◆ 90% high efficiency for 15V/80mA output
◆ 250uA quiescent current (VFB=1.5V)
◆ Internal loop compensation
◆ Protections
- Soft-start
- Input under-voltage lockout (UVLO)
- Boost cycle-by-cycle current-limit protection
- 36V over-voltage protection
- Thermal shutdown protection
◆ Packaging
- SOT23-5L
- RoHS compliant and halogen free
- 100% lead (Pb) free
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