ISL9440CIRZ datasheet(13/25 Pages) RENESAS

Part #	ISL9440CIRZ

Description	Triple Step-Down PWM and Single Linear Controller with Programmable Soft-Start

PDF	25 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

13 / 25 page

ISL9440B, ISL9440C

FN6799 Rev 4.00

Page 13 of 25

February 18, 2016

FIGURE 18. PGOOD RISING TO RST RISING

FIGURE 19. VIN FALLING TO PGOOD FALLING DELAY TIME

FIGURE 20. PWM1 OUTPUT RIPPLE UNDER MAX LOAD

(VIN = 23V, IO1 = IO2 = 15A, IO3 = 12A, FULL

BANDWIDTH)

FIGURE 21. PWM1 LOAD TRANSIENT RESPONSE

(LOAD STEP FROM 3.75A TO 11.25A)

FIGURE 22. PWM2 OUTPUT RIPPLE UNDER MAX LOAD

(VIN = 23V, IO1 = IO2 = 15A, IO3 = 12A, FULL

BANDWIDTH)

FIGURE 23. PWM2 LOAD TRANSIENT RESPONSE

(LOAD STEP FROM 3.75A TO 11.25A)

Typical Performance Curves (Continued)

(Oscilloscope Plots are Taken Using the ISL9440BEVAL1Z Evaluation Board, VIN = 19V Unless Otherwise Noted).

2.0µs/DIV

PGOOD, 5.0V/DIV

RST, 5.0V/DIV

VOUT1, 2.0V/DIV

PGOOD, 5.0V/DIV

VIN, 2.0V/DIV

RST, 5.0V/DIV

VOUT1, 2.0V/DIV

0.5ms/DIV

VOUT1(AC), 50mV/DIV

2.0

µs/DIV

VOUT1(AC), 100mV/DIV

ISTEP, 5.0A/DIV

µs/DIV

VOUT2(AC), 50mV/DIV

2.0

µs/DIV

ISTEP, 5.0A/DIV

µs/DIV

VOUT2(AC), 100mV/DIV

ISL9440CIRZ Datasheet(PDF) 13 Page - Renesas Technology Corp