ZL2103ALAF datasheet, PDF - EEWORLD Datasheet

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ZL2103ALAF: Description3A Digital-DC Synchronous Step-Down DC/DC Converter; QFN36; Temp Range: -40° to 85°C; CategoryPower/power management The power supply circuit; File Size1MB，28 Pages; ManufacturerRenesas Electronics Corporation; Websitehttps://www.renesas.com/; Environmental Compliance

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ZL2103ALAF Overview

3A Digital-DC Synchronous Step-Down DC/DC Converter; QFN36; Temp Range: -40° to 85°C

ZL2103ALAF Parametric

Parameter Name	Attribute value
Brand Name	Intersil
Is it Rohs certified?	conform to
Maker	Renesas Electronics Corporation
Parts packaging code	QFN
package instruction	HQCCN, LCC36,.25SQ,20
Contacts	36
Reach Compliance Code	compli
ECCN code	EAR99
Other features	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.54 TO 5.5V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR
control mode	VOLTAGE-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	14 V
Minimum input voltage	4.5 V
Nominal input voltage	12 V
JESD-30 code	S-PQCC-N36
JESD-609 code	e3
length	6 mm
Humidity sensitivity level	2
Number of functions	1
Number of terminals	36
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output current	5 A
Package body material	PLASTIC/EPOXY
encapsulated code	HQCCN
Encapsulate equivalent code	LCC36,.25SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.05 mm
surface mount	YES
Switch configuration	BUCK
Maximum switching frequency	1000 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	30
width	6 mm

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NOT RECOMMENDED FOR NEW DESIGNS

RECOMMENDED REPLACEMENT PART

ZL2102

DATASHEET

FN6966

Rev 5.00

May 3, 2011

ZL2103

3A Digital-DC Synchronous Step-Down DC/DC Converter

The ZL2103 is an innovative power conversion and

management IC that combines an integrated synchronous

step-down DC/DC converter with key power management

functions in a small package, resulting in a flexible and

integrated solution.

The ZL2103 can provide an output voltage from 0.54V to 5.5V

(with margin) from an input voltage between 4.5V and 14V.

Internal low r

DS(ON)

synchronous power MOSFETs enable the

ZL2103 to deliver continuous loads up to 3A with high

efficiency. An internal Schottky bootstrap diode reduces

discrete component count. The ZL2103 also supports phase

spreading to reduce system input capacitance.

Power management features such as digital soft-start delay

and ramp, sequencing, tracking, and margining can be

configured by simple pin-strapping or through an on-chip serial

port. The ZL2103 uses the PMBus™ protocol for

communication with a host controller and the Digital-DC bus

for interoperability between other Zilker Labs devices.

Features

• Integrated MOSFET switches

• 3A continuous output current

• ±1% output voltage accuracy

•

Snapshot™

parametric capture

• I

C/SMBus interface, PMBus compatible

• Internal non-volatile memory (NVM)

Applications*

(see page 27)

• Telecom, Networking, Storage equipment

• Test and Measurement equipment

• Industrial control equipment

• 5V and 12V distributed power systems

Related Literature

• See

AN2010

“Thermal and Layout Guidelines for Digital-

DC™ Products”

• See

AN2033

“Zilker Labs PMBus Command Set-DDC

Products PMBus Command Set”

• See

AN2035

“Compensation Using CompZL™”

100

OUT

= 3.3V

0.0

= 12V

= 200kHz

L = 6µH

0.5

1.0

1.5

OUT

(A)

2.0

2.5

3.0

EFFICIENCY (%)

FIGURE 1. ZL2103 EFFICIENCY

FN6966 Rev 5.00

May 3, 2011

Page 1 of 28

ZL2103

Table of Contents

Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

ZL2103 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Digital-DC Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Power Conversion Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Power Management Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Multi-mode Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Power Conversion Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Internal Bias Regulators and Input Supply Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

High-side Driver Boost Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Output Voltage Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Start-up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Soft-start Delay and Ramp Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Power-good (PG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Switching Frequency and PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Component Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Current Sensing and Current Limit Threshold Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Driver Dead-time Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Power Management Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Input Undervoltage Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Output Overvoltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Output Pre-Bias Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Output Overcurrent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Thermal Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Voltage Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Voltage Margining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

C/SMBus Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

C/SMBus Device Address Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Digital-DC Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Phase Spreading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Output Sequencing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Fault Spreading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Monitoring via I

C/SMBus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Snapshot™ Parametric Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Non-Volatile Memory and Device Security Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

FN6966 Rev 5.00

May 3, 2011

Page 5 of 28

ZL2103ALAF Related Products

	ZL2103ALAF	ZL2103ALAFTK
Description	3A Digital-DC Synchronous Step-Down DC/DC Converter; QFN36; Temp Range: -40° to 85°C	3A Digital-DC Synchronous Step-Down DC/DC Converter; QFN36; Temp Range: -40° to 85°C
Brand Name	Intersil	Intersil
Is it Rohs certified?	conform to	conform to
Maker	Renesas Electronics Corporation	Renesas Electronics Corporation
Parts packaging code	QFN	QFN
package instruction	HQCCN, LCC36,.25SQ,20	HQCCN, LCC36,.25SQ,20
Contacts	36	36
Reach Compliance Code	compli	compli
ECCN code	EAR99	EAR99
Other features	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.54 TO 5.5V	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.54 TO 5.5V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR	SWITCHING REGULATOR
control mode	VOLTAGE-MODE	VOLTAGE-MODE
Control Technology	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	14 V	14 V
Minimum input voltage	4.5 V	4.5 V
Nominal input voltage	12 V	12 V
JESD-30 code	S-PQCC-N36	S-PQCC-N36
JESD-609 code	e3	e3
length	6 mm	6 mm
Humidity sensitivity level	2	2
Number of functions	1	1
Number of terminals	36	36
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Maximum output current	5 A	5 A
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HQCCN	HQCCN
Encapsulate equivalent code	LCC36,.25SQ,20	LCC36,.25SQ,20
Package shape	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG	CHIP CARRIER, HEAT SINK/SLUG
Peak Reflow Temperature (Celsius)	260	260
Certification status	Not Qualified	Not Qualified
Maximum seat height	1.05 mm	1.05 mm
surface mount	YES	YES
Switch configuration	BUCK	BUCK
Maximum switching frequency	1000 kHz	1000 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	30	30
width	6 mm	6 mm

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Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

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