ISL9440CIRZ datasheet, PDF - EEWORLD Datasheet

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ISL9440CIRZ: Description0.1A SWITCHING REGULATOR, 678kHz SWITCHING FREQ-MAX, PQCC32, 5 X 5 MM, ROHS COMPLIANT, PLASTIC, QFN-32; CategoryPower/power management The power supply circuit; File Size2MB，25 Pages; ManufacturerRenesas Electronics Corporation; Websitehttps://www.renesas.com/; Environmental Compliance

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ISL9440CIRZ Overview

0.1A SWITCHING REGULATOR, 678kHz SWITCHING FREQ-MAX, PQCC32, 5 X 5 MM, ROHS COMPLIANT, PLASTIC, QFN-32

ISL9440CIRZ Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Renesas Electronics Corporation
Parts packaging code	QFN
package instruction	HVQCCN, LCC32,.2SQ,20
Contacts	32
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	ALSO OPERATES AS LDO REGULATOR
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR
control mode	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	24 V
Minimum input voltage	5.6 V
Nominal input voltage	12 V
JESD-30 code	S-PQCC-N32
JESD-609 code	e3
length	5 mm
Humidity sensitivity level	3
Number of functions	1
Number of terminals	32
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output current	0.1 A
Nominal output voltage	5 V
Package body material	PLASTIC/EPOXY
encapsulated code	HVQCCN
Encapsulate equivalent code	LCC32,.2SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1 mm
surface mount	YES
Switch configuration	BUCK
Maximum switching frequency	678 kHz
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn) - annealed
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	5 mm

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DATASHEET

ISL9440B, ISL9440C

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

The ISL9440B and ISL9440C are quad-output synchronous

buck controllers that integrate three PWM controllers and one

low drop-out linear regulator controller, which are full featured

and designed to provide multi-rail power for use in products

such as cable and satellite set-top boxes, VoIP gateways,

cable modems, and other home connectivity products as well

as a variety of industrial and general purpose applications.

Each output is adjustable down to 0.8V. The PWMs are

synchronized at 180° out-of-phase thus, reducing the RMS

input current and ripple voltage.

The ISL9440B and ISL9440C offer programmable soft-start,

independent enable inputs for ease of supply rail

sequencing, and integrated UV/OV/OC/OT protections in a

space conscious 5mmx5mm QFN package. An early

warning function is offered to output a logic signal to warn

the system to back up data when input voltage falls below a

certain level.

The ISL9440B and ISL9440C utilize internal loop

compensation to keep minimum peripheral components for

compact design and a low total solution cost. These devices

are implemented with current mode control with feed-forward

to cover various applications even with fixed internal

compensations.

Table 1 shows the difference in terms of ISL944xx family

features.

TABLE 1.

PART

NUMBER

ISL9440

ISL9440A

ISL9441

ISL9440B

ISL9440C

(No longer

available or

supported)

EARLY

WARNING

Yes

SWITCHING

FREQUENCY

(kHz)

300

600

300

600

SOFT-STARTING

TIME (ms)

1.7

Programmable

FN6799

Rev 4.00

February 18, 2016

Features

• Three Integrated Synchronous Buck PWM Controllers

- Internal Bootstrap Diodes

- Internal Compensation

• Independent Control for each Regulator and

Programmable Output Voltages; Independent

Enable/Shutdown/Soft-start

• Fixed Switching Frequency: 300kHz(B), 600kHz(C)

• Adaptive Shoot-Through Protection on all Synchronous

Buck Controllers

• Pre-biased Output Start-up Capability

• Out-of-Phase Switching to Reduce Input Capacitance

(0°/180°/0°)

• No External Current Sense Resistor

- Uses Lower MOSFET’s r

DS(ON)

• Current Mode Controller with Voltage Feed-Forward

• Complete Protection

- Overcurrent, Overvoltage, Undervoltage Lockout,

Over-Temperature

• Cycle-by-Cycle Current Limiting

• Wide Input Voltage Range

- Input Rail Powers VIN Pin: 5.6V to 24V

- Input Rail Powers VCC_5V Pin (VIN tied to VCC_5V, for

5V input applications): 4.5V to 5.6V

• Early Warning on Input Voltage Failure

• Integrated Reset Function

• Pb-Free (RoHS Compliant)

Applications

• Satellite and Cable Set-Top Boxes

• Cable Modems

• VoX Gateway Devices

• NAS/SAN Devices

• ATX Power Supply

Related Literature

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for QFN (MLFP) Packages”

FN6799 Rev 4.00

February 18, 2016

Page 1 of 25

ISL9440CIRZ Related Products

	ISL9440CIRZ	ISL9440CIRZ-T
Description	0.1A SWITCHING REGULATOR, 678kHz SWITCHING FREQ-MAX, PQCC32, 5 X 5 MM, ROHS COMPLIANT, PLASTIC, QFN-32	0.1A SWITCHING REGULATOR, 678kHz SWITCHING FREQ-MAX, PQCC32, 5 X 5 MM, ROHS COMPLIANT, PLASTIC, QFN-32
Is it lead-free?	Lead free	Lead free
Is it Rohs certified?	conform to	conform to
Maker	Renesas Electronics Corporation	Renesas Electronics Corporation
Parts packaging code	QFN	QFN
package instruction	HVQCCN, LCC32,.2SQ,20	HVQCCN, LCC32,.2SQ,20
Contacts	32	32
Reach Compliance Code	compliant	compliant
ECCN code	EAR99	EAR99
Other features	ALSO OPERATES AS LDO REGULATOR	ALSO OPERATES AS LDO REGULATOR
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR	SWITCHING REGULATOR
control mode	CURRENT-MODE	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	24 V	24 V
Minimum input voltage	5.6 V	5.6 V
Nominal input voltage	12 V	12 V
JESD-30 code	S-PQCC-N32	S-PQCC-N32
JESD-609 code	e3	e3
length	5 mm	5 mm
Humidity sensitivity level	3	3
Number of functions	1	1
Number of terminals	32	32
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Maximum output current	0.1 A	0.1 A
Nominal output voltage	5 V	5 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HVQCCN	HVQCCN
Encapsulate equivalent code	LCC32,.2SQ,20	LCC32,.2SQ,20
Package shape	SQUARE	SQUARE
Package form	CHIP CARRIER	CHIP CARRIER
Peak Reflow Temperature (Celsius)	260	260
Certification status	Not Qualified	Not Qualified
Maximum seat height	1 mm	1 mm
surface mount	YES	YES
Switch configuration	BUCK	BUCK
Maximum switching frequency	678 kHz	678 kHz
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed
Terminal form	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED
width	5 mm	5 mm

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