FAN5099 Ver la hoja de datos (PDF) - Fairchild Semiconductor

Número de pieza

componentes Descripción

Fabricante

FAN5099

Wide Frequency Synchronous Buck PWM & LDO Controller

Fairchild Semiconductor 

Typical Performance Characteristics

VIN = 12V, Vdd = 5V, VOUT = 1.5V, Vldo = 1.2V, Iload = 5A, Ildo = 2A, fosc = 300kHz, unless otherwise noted.

Ch1: HDRV; Ch2: LDRV. Dead times: 62ns, 32ns

Figure 3. Dead Time Waveform

Ch1: VOUT; Ch3: IL, 5A/div

Figure 6. PWM Load Transient (0 to 15A)

Ch1: VOUT; Ch3: IL, 2.5A/div

Figure 4. PWM Load Transient (0 to 5A)

Ch1: VOUT_LDO; Ch3: ILDO, 1A/div

Figure 7. LDO Load Transient (0 to 2A)

Ch1: VOUT; Ch3: IL, 5A/div

Figure 5. PWM Load Transient (0 to 10A)

Ch1: VOUT_LDO; Ch3: ILDO, 2.5A/div

Figure 8. LDO Load Transient (0 to 5A)

© 2006 Fairchild Semiconductor Corporation

FAN5099 Rev. 1.1.5

7

www.fairchildsemi.com

Share Link: