概述
The LP54334 is a synchronous buck converter supporting up to 3A output current. The LP54334 employs an adaptive constant-on-time (COT) control scheme to achieve fast load transient response. The external components are minimized, requiring only one inductor, two resistors, and two capacitors.
The LP54334 supports both aluminum polymer capacitors and ceramic capacitors without extra compensation components.The LP54334 integrates PFM (Pulse Frequency Modulation) operation, which helps maintain the system efficiency at light load. The LP54334 also integrates multiple protection functions, i.e., over-current protection (OCP), over-temperature protection (OTP), under-voltage lockout (UVLO), output over-voltage protection (OVP),and short circuit protection (SCP).The LP54334 is available in a ESOP-8 package.
The LP54334 supports both aluminum polymer capacitors and ceramic capacitors without extra compensation components.The LP54334 integrates PFM (Pulse Frequency Modulation) operation, which helps maintain the system efficiency at light load. The LP54334 also integrates multiple protection functions, i.e., over-current protection (OCP), over-temperature protection (OTP), under-voltage lockout (UVLO), output over-voltage protection (OVP),and short circuit protection (SCP).The LP54334 is available in a ESOP-8 package.
应用
◆ Industrial PC
◆ Network/digital video recorder (NVR/DVR)
◆ TV and TV box
◆ 12V and 24V Industrial bus applications
◆ Network/digital video recorder (NVR/DVR)
◆ TV and TV box
◆ 12V and 24V Industrial bus applications
数据参数
数据参数
输入电压 (V)
4.5~36
输出电压(V)
0.8~13.2
FB电压（V）
0.8
电压精度
±1%
工作频率(Hz)
500K
最大输出电流(A)
3
输出通道数量
1
工作模式
Syn.
EN控制
Y
轻负载模式
PFM/PWM
产品特征/功能
COT,Internal Soft Start,OCP,SCP,OTP
封装
ESOP8
特征
特征
◆ Wide input voltage range: 4.5V – 36V
◆ Output voltage range: Vref – 13.2V
◆ High efficiency operation
- Integrated an 85-mΩ LS-MOSFET and an 130-mΩ HS-MOSFET
- 88% efficiency at 3A load from 12V to 5V conversion
◆ Automatic PFM mode to achieve high efficiency at light load
◆ ±1% Vref accuracy
◆ Typical 500-kHz switching frequency
◆ COT control scheme with fast load transient response
◆ Hiccup protection
◆ Integrated UVLO, OVP, OCP, SCP, and OTP protections
◆ ESOP-8 package
◆ RoHS Compliant and 100% Lead (Pb) Free
◆ Output voltage range: Vref – 13.2V
◆ High efficiency operation
- Integrated an 85-mΩ LS-MOSFET and an 130-mΩ HS-MOSFET
- 88% efficiency at 3A load from 12V to 5V conversion
◆ Automatic PFM mode to achieve high efficiency at light load
◆ ±1% Vref accuracy
◆ Typical 500-kHz switching frequency
◆ COT control scheme with fast load transient response
◆ Hiccup protection
◆ Integrated UVLO, OVP, OCP, SCP, and OTP protections
◆ ESOP-8 package
◆ RoHS Compliant and 100% Lead (Pb) Free
