LV56351HA-ZH ON Semiconductor

Ordering number : ENA2145 LV56351HA Bi-CMOS IC 1ch DC/DC boost converter LV56351HA Recommended Operating Conditions at Ta = 25C Parameter Symbol Conditions Ratings Unit V supply voltage V 8 to 23 V CC CC LDOIN input voltage V 8 to 28 V LDOIN SW voltage V -0.3 to 28 V SW EN voltage V 0 to 23 V EN Electrical Characteristics at Ta = 25C, V = 12V, V =2V, LDOIN=16V, LDOOUT=15V CC EN Ratings Parameter Symbol Conditions Unit min typ max All Supply current1 I Switching is turned off 1.8 3.5 mA CC Supply current2 I EN = 0V 10 A OFF Reference voltage V 1.2348 1.26 1.2852V REF Enable voltage V 2.0 V EN Disable voltage V 0.4 V DIS EN input current I V = 2.0V 10 A EN EN PGOOD threshold VPG IN1 VREF85% and IN2 VREF85% VREF0.85 V PGOOD sink current IPG V = 0.5V 1.0 mA PGOOD PGOOD leak current IPGLK V = 2V 10 A PGOOD UVLO on voltage V 7.0 V UVLO Thermal shutdown temperature T *2 130 C TSD TSD hysteresis T *2 30 C HYS DC/DC boost converter FB output voltage Low FB IN1 = 2.0V, I = -20A (Sink) 0.2 V Low FB FB output voltage High FB IN1 = 0.2V, I = 20A (Source) 1.8 V High FB Soft-start time T 2.8 ms SS Oscillator frequency F 425 kHz OSC Max on duty D 78 85 92% MAX SW on resistance R 0.7 ON SW peak current I 1.5 1.8 A PK SCP source current I 4.8 A SCP SCP threshold V VREF V SCP DDCTL on voltage V DC/DC Off 2.0 V DDCTLON DDCTL off voltage V DC/DC On 0.4 V DDCTLOFF DDCTL input current I V = 2V 20 A DDCTL DDCTL LDO Maximum output current I 350 520 670mA OMAX Line regulation R 16V < LDOIN < 21V 20 mV LN Load regulation R 10mA < I < 300mA 20 mV LD O Dropout voltage V I = 300mA 0.25 0.4 V DROP O Short current I LDOOUT = GND 100 mA SHORT *2: Design guarantee value. No.A2145-2/9