MAX16939RAUEB/V+ datasheet, PDF

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MAX16939RAUEB/V+: DescriptionSwitching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, PDSO16, ROHS COMPLIANT, TSSOP-16; CategoryPower/power management The power supply circuit; File Size1MB，17 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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MAX16939RAUEB/V+ Overview

Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, PDSO16, ROHS COMPLIANT, TSSOP-16

MAX16939RAUEB/V+ Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Maxim
package instruction	HTSSOP,
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR
control mode	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	36 V
Minimum input voltage	3.5 V
Nominal input voltage	14 V
JESD-30 code	R-PDSO-G16
length	5 mm
Number of functions	1
Number of terminals	16
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Maximum output current	6.2 A
Nominal output voltage	3.3 V
Package body material	PLASTIC/EPOXY
encapsulated code	HTSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Maximum seat height	1.1 mm
surface mount	YES
Switch configuration	BUCK
Maximum switching frequency	2200 kHz
technology	BICMOS
Temperature level	AUTOMOTIVE
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	4.4 mm

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EVALUATION KIT AVAILABLE

MAX16935/MAX16939

36V, 3.5A, 2.2MHz Step-Down Converters

with 28µA Quiescent Current

General Description

The MAX16935/MAX16939 are 3.5A current-mode step-

down converters with integrated high-side and low-

side MOSFETs designed to operate with an external

Schottky diode for better efficiency. The low-side MOSFET

enables fixed-frequency forced-PWM (FPWM) operation

under light-load applications. The devices operate with

input voltages from 3.5V to 36V, while using only 28FA

quiescent current at no load. The switching frequency is

resistor programmable from 220kHz to 2.2MHz and can

be synchronized to an external clock. The devices’ output

voltage is available as 3.3V/5V fixed or adjustable from

1V to 10V. The wide input voltage range along with its

ability to operate at 98% duty cycle during undervoltage

transients make the devices ideal for automotive and

industrial applications.

Under light-load applications, the FSYNC logic input

allows the devices to either operate in skip mode for

reduced current consumption or fixed-frequency FPWM

mode to eliminate frequency variation to minimize

EMI. Fixed-frequency FPWM mode is extremely use-

ful for power supplies designed for RF transceivers

where tight emission control is necessary. Protection

features include cycle-by-cycle current limit and thermal

shutdown with automatic recovery. Additional features

include a power-good monitor to ease power-supply

sequencing and a 180N out-of-phase clock output relative

to the internal oscillator at SYNCOUT to create cascaded

power supplies with multiple devices.

The MAX16935/MAX16939 operate over the -40NC

to +125NC automotive temperature range and are

available in 16-pin (5mm x 5mm) TQFN-EP and 16-pin

TSSOP-EP packages.

Benefits and Features

●

Integration and High-Switching Frequency Saves

Space

• Integrated 3.5A High-Side Switch

• Low-BOM-Count Current-Mode Control

Architecture

• Fixed Output Voltage with ±2% Accuracy or

Externally Resistor Adjustable (1V to 10V)

• 220kHz to 2.2MHz Switching Frequency with

Three Operation Modes (Skip Mode, Forced

Fixed-Frequency Operation, and External

Frequency Synchronization)

• Automatic LX Slew-Rate Adjustment for Optimum

Efficiency Across Operating Frequency Range

●

180° Out-of-Phase Clock Output at SYNCOUT

Enables Cascaded Power Supplies for Increased

Power Output

●

Spread-Spectrum Frequency Modulation Reduces

EMI Emissions

●

Wide Input Voltage Range Supports Automotive

Applications

• 3.5V to 36V Input Voltage Range (42V Tolerant)

• Enable Input Compatible from 3.3V Logic Level

to 42V

●

Robust Performance Supports Wide Range of

Automotive Applications

• -40°C to +125°C Automotive Temperature Range

• Thermal-Shutdown Protection

•

AEC-Q100 Qualified

●

Power-Good Output Allows Power-Supply

Sequencing

Applications

●

Point-of-Load Applications

●

Distributed DC Power Systems

●

Navigation and Radio Head Units

Ordering Information/Selector Guide

and

Typical

Application Circuit

appear at end of data sheet.

19-6868; Rev 8; 6/15

MAX16939RAUEB/V+ Related Products

	MAX16939RAUEB/V+	MAX16939RATE/V+	MAX16939RATEB/V+	MAX16939RAUE/V+	MAX16939SATE/V+	MAX16939SATEB/V+	MAX16939SAUE/V+	MAX16939SAUEB/V+
Description	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, PDSO16, ROHS COMPLIANT, TSSOP-16	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, 5 X 5 MM, ROHS COMPLIANT, TQFN-16	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, 5 X 5 MM, ROHS COMPLIANT, TQFN-16	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, PDSO16, ROHS COMPLIANT, TSSOP-16	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, 5 X 5 MM, ROHS COMPLIANT, TQFN-16	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, 5 X 5 MM, ROHS COMPLIANT, TQFN-16	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, PDSO16, ROHS COMPLIANT, TSSOP-16	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, PDSO16, ROHS COMPLIANT, TSSOP-16
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	conform to	conform to	conform to
Maker	Maxim	Maxim	Maxim	Maxim	Maxim	Maxim	Maxim	Maxim
package instruction	HTSSOP,	HVQCCN,	HVQCCN,	HTSSOP,	HVQCCN,	HVQCCN,	HTSSOP,	HTSSOP,
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Other features	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V	ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 10V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR
control mode	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V
Minimum input voltage	3.5 V	3.5 V	3.5 V	3.5 V	3.5 V	3.5 V	3.5 V	3.5 V
Nominal input voltage	14 V	14 V	14 V	14 V	14 V	14 V	14 V	14 V
JESD-30 code	R-PDSO-G16	S-XQCC-N16	S-XQCC-N16	R-PDSO-G16	S-XQCC-N16	S-XQCC-N16	R-PDSO-G16	R-PDSO-G16
length	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm
Number of functions	1	1	1	1	1	1	1	1
Number of terminals	16	16	16	16	16	16	16	16
Maximum operating temperature	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Maximum output current	6.2 A	6.2 A	6.2 A	6.2 A	6.2 A	6.2 A	6.2 A	6.2 A
Nominal output voltage	3.3 V	5 V	3.3 V	5 V	5 V	3.3 V	5 V	3.3 V
Package body material	PLASTIC/EPOXY	UNSPECIFIED	UNSPECIFIED	PLASTIC/EPOXY	UNSPECIFIED	UNSPECIFIED	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HTSSOP	HVQCCN	HVQCCN	HTSSOP	HVQCCN	HVQCCN	HTSSOP	HTSSOP
Package shape	RECTANGULAR	SQUARE	SQUARE	RECTANGULAR	SQUARE	SQUARE	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Maximum seat height	1.1 mm	0.8 mm	0.8 mm	1.1 mm	0.8 mm	0.8 mm	1.1 mm	1.1 mm
surface mount	YES	YES	YES	YES	YES	YES	YES	YES
Switch configuration	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK
Maximum switching frequency	2200 kHz	2200 kHz	2200 kHz	2200 kHz	2200 kHz	2200 kHz	2200 kHz	2200 kHz
technology	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS
Temperature level	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
Terminal form	GULL WING	NO LEAD	NO LEAD	GULL WING	NO LEAD	NO LEAD	GULL WING	GULL WING
Terminal pitch	0.65 mm	0.8 mm	0.8 mm	0.65 mm	0.8 mm	0.8 mm	0.65 mm	0.65 mm
Terminal location	DUAL	QUAD	QUAD	DUAL	QUAD	QUAD	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	4.4 mm	5 mm	5 mm	4.4 mm	5 mm	5 mm	4.4 mm	4.4 mm

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