ME2179
ME
SOT23-6
全新原装
1.8V to 5.5 V
企业名:深圳市亿创微芯电子有限公司
类型:
电话: 0755-83538626
手机:15815503065
联系人:李娜娜
微信:
邮箱:elemchip@126.com
地址:广东深圳中国 广东 深圳市民治东边大厦701-702
升压DC/DC控制器和转换器IC
升压DC/DC控制器和转换器IC
升压DC/DC控制器和转换器IC
The ME2179 series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an osillation circuit, an error amplifier, a phase compensation circuit, a timer latch short-circuit protection circuit, a PWM 1 PFM switching control circuit. With an external low-ON-resistance Nch Power MOS, this product is ideal for applications requiring high efficiency and a high output current.
During light-load, ME2179 Series switches its operation to the PFM control by the PWM /PFM switching control circuit in order to prevent efficiency decline due to the IC operating current. Ceramic capacitors can be used for output capacitor.
Features
Input voltage range: 1.8V to 5.5 V
Duty ratio: Builtin PWM/PFM switching control circuit 28% to 85%
oscillator frequency : 1 .2MHz
Reference voltage: 0.6 x (1土2%) V
Maximum output current: 2.0A typ. (VDD=3V, Vout=5.0V)
Soft start function: 8ms typ.
Low current consumption: 70μA typ. at switching
off
Shuldown function: Current consumption 1.0μA max. at shutdown
External parts: Inductor, diode, capacitor, transistor
Timer latch short-circuit protection circuit: .Selectable with 1 without short-circuit protection circuit for each product;
Settable delay time by external capacitor (in the product with short-circuit protection)
UVLO (under-voltage lockout) function: Selectable with UVLO for each product
Typical Application
MP3 players, digital audio players
Digital cameras, GPS, wireless transceiver
Portable devices
企业名:深圳市亿创微芯电子有限公司
类型:
电话: 0755-83538626
手机:15815503065
联系人:李娜娜
微信:
邮箱:elemchip@126.com
地址:广东深圳中国 广东 深圳市民治东边大厦701-702