ISL9305IRTWCLBZ-T View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

ISL9305IRTWCLBZ-T

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

Renesas Electronics 

ISL9305

Typical Operating Conditions

VODCD1(20mV/DIV, AC-COUPLING)

VODCD1(20mV/DIV, AC-COUPLING)

SW2(5V/DIV)

VODCD2(20mV/DIV, AC-COUPLING)

IL1 (500mA/DIV)

VODCD2(20mV/DIV, AC-COUPLING)

SW1(5V/DIV)

FIGURE 9. DCD OUTPUT VOLTAGE RIPPLE (VIN = 4.2V, FULL LOAD AT

DCD1 AND DCD2)

IL2 (500mA/DIV)

FIGURE 10. DCD OUTPUT VOLTAGE RIPPLE (VIN = 4.2V, PFM MODE)

VODCD1 (100mV/DIV

VODCD2 (10mV/DIV)

VOLDO1 (100mV/DIV

VOLDO2 (10mV/DIV)

IOUT_VODCD1 (500mA/DIV

FIGURE 11. DCD OUTPUT TRANSIENT RESPONSE (VIN = 4.2V, LOAD

STEP: 80mA TO 800mA)

VODCD1 (2V/DIV)

VODCD2 (1V/DIV)

VOLDO1 (1V/DIV)

IOUT_LDO1 (200mA/DIV

FIGURE 12. LDO OUTPUT TRANSIENT RESPONSE (VIN = 4.2V, STEP

LOAD: 30mA TO 300mA)

IL2 (200mA/DIV)

IL1 (200mA/DIV)

SW1 (5V/DIV)

VOLDO2 (2V/DIV)

SW2 (5V/DIV)

FIGURE 13. START-UP SEQUENCE (VIN = 4.2V, NO LOAD)

FN7605 Rev 2.00

February 9, 2015

FIGURE 14. DCD1 AND DCD2 SWITCHING WAVEFORM (VIN = 5V,

FULL LOAD ON TWO CHANNELS)

Page 13 of 17

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