SC9301

10

Transient Response

Typical Characteristics (continued)

Characteristics in this section are based upon using the Typical Application Circuit on page 6.

Protection — OCP then UV

Time (2ms/div)

(200mV/div)

(5A/div)

(500mV/div)

(5V/div)

VDD = 5V, V

IN

= 12V, V

OUT

= 1.5V, I

OUT

= 10A to 12A

Protection — OVP

Time (50ms/div)

(200mV/div)

(5V/div)

VDD = 5V, V

IN

= 12V, V

OUT

= 1.5V, I

OUT

= 0A

Protection: OCP, UVP then Hiccup

Time: Above (20ms/div), Bottom (1ms/div)

(500mV/div)

(2V/div)

(5V/div)

V

IN

= 12V, V

OUT

= 1.5V, I

OUT

= 5A to 12A

Transient Response

Time (20μs/div)

(5A/div)

(50mV/div)

(10V/div)

VDD = 5V, V

IN

= 12V, V

OUT

= 1.5V, I

OUT

= 9A to 0A to 9A

Time (20μs/div)

(50mV/div)

(10V/div)

VDD = 5V, V

IN

= 18V, V

OUT

= 1.5V, I

OUT

= 9A to 0A to 9A

Zoom-In Above

(5A/div)

(5A/div)

540mV

450mV

(5V/div)

(500mV/div)

Start-up—Short & Over Current Protection

Time (500μs/div)

V

IN

= 12V, V

OUT

= 1.5V, I

OUT

= OC regulated at valley 10.2A

LX

V

OUT

I

OUT

LX

V

OUT

I

OUT

V

OUT

I

OUT

Soft-Start

PGOOD

LX

I

OUT

V

OUT

Inductor Current

(100mV/div)

(5A/div)

(5V/div)

(5A/div)

V

OUT

Soft-Start

DL

FB

V

OUT

FB

I

OUT

PGOOD