ISL9305IRTWCLBZ-T(2010) View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

ISL9305IRTWCLBZ-T
(Rev.:2010)

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

Intersil 

ISL9305

DCD OUTPUT VOLTAGE SLEW RATE CONTROL

REGISTER

DCD_SRCTL, address 0x06h

TABLE 8.

BIT

NAME

ACCESS RESET

DESCRIPTION

B7 DCD2SR_2

B6 DCD2SR_1

B5 DCD2SR_0

R/W

R/W

R/W

0 DCD2 Slew Rate Setting,

DCD2SR[2:0]:

0 000 to 0.225mV/µs

1 001 to 0.45mV/µs

010 to 0.90mV/µs

011 to 1.8mV/µs

100 to 3.6mV/µs

101 to 7.2mV/µs

110 to 14.4mV/µs

111 to immediate

B4 Reserve

-

0 Reserved

B3 DCD1SR_2

B2 DCD1SR_1

B1 DCD1SR_0

R/W

R/W

R/W

0 DCD1 Slew Rate Setting,

DCD1SR[2:0]:

0 000 to 0.225mV/µs

1 001 to 0.45mV/µs

010 to 0.90mV/µs

011 to 1.8mV/µs

100 to 3.6mV/µs

101 to 7.2mV/µs

110 to 14.4mV/µs

111 to immediate

B0 Reserve

-

0 Reserved

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)

13

FN7605.0

November 8, 2010

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