ISL9305IRTHWCNLZ-T(2010) View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

ISL9305IRTHWCNLZ-T
(Rev.:2010)

3MHz Dual 1.5A Step-Down Converters and Dual Low-Input LDOs with I2C Compatible Interface

Intersil 

ISL9305H

Typical Operating Conditions

FIGURE 8. DCD OUTPUT RIPPLE (VIN = 4.2V, PFM, TIME SCALE = 1µs)

CH1: VODCD1 (20mV/DIV), CH2: IL1 (500mA/DIV),

CH3: VODCD2 (20mV/DIV), CH4: IL2 (500mA/DIV)

FIGURE 9. DCD OUTPUT RIPPLE (VIN = 4.2V, FULL LOADING @

VODCD1 AND VODCD2, TIME SCALE = 200ns)

CH1: SW1 (5V/DIV), CH2: VODCD1 (20mA/DIV),

CH3: SW2 (5V/DIV), CH4: VODCD2 (20mA/DIV)

FIGURE 10. INDUCTOR CURRENT RIPPLE (VIN = 3.6V, PFM,

TIME SCALE = 200ns) CH1: SW1 (2V/DIV),

CH2: IL1 (200mA/DIV), CH3: SW2 (2V/DIV),

CH4: IL2 (200mA/DIV)

FIGURE 11. INDUCTOR CURRENT RIPPLE (VIN = 3.6V, FULL LOADING,

PWM, TIME SCALE = 200ns) CH1: SW1 (2V/DIV),

CH2: IL1 (500mA/DIV), CH3: SW2 (2V/DIV),

CH4: IL2 (500mA/DIV)

FIGURE 12. DCD1 TRANSIENT RESPONSE (VIN = 3.6V, STEP LOAD:

150mA TO 1500mA) CH1: VODCD1 (100mV/DIV, AC),

CH2: VODCD2 (50mV/DIV, AC, CH4: IL4 (500mA/DIV)

13

FIGURE 13. DCD2 TRANSIENT RESPONSE (VIN = 3.6V, STEP LOAD:

150mA TO 1500mA) CH1: VODCD1 (100mV/DIV, AC),

CH2: VODCD2 (50mV/DIV, AC, CH4: IL4 (500mA/DIV)

FN7724.0

November 8, 2010

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