FREQ datasheet(1/56 Pages) FUJITSU

номер детали	FREQ

подробное описание детали	2ch DC/DC converter IC with PFM/ PWM synchronous rectification

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производитель	FUJITSU [fujitsu semiconductor]

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2011.12

FUJITSU SEMICONDUCTOR

DATA SHEET

DS405-00007-1v0-E

FUJITSU SEMICONDUCTOR CONFIDENTIAL

ASSP for Power Management Applications

2ch DC/DC converter IC

with PFM/ PWM synchronous rectification

MB39A214A

DESCRIPTION

MB39A214A is a N-ch/ N-ch synchronous rectification type 2ch Buck DC/DC converter IC equipped with

a bottom detection comparator for low output voltage ripple. It supports low on-duty operation to allow

stable output of low voltages when there is a large difference between input and output voltages. It also

allows the high switching frequency setting, enabling the downsized peripheral circuits and low-cost

configuration. MB39A214A realizes ultra-rapid response and high efficiency with built-in enhanced

protection features. It is most suitable for the power supply for ASIC or FPGA core, input/output devices, or

memory.

FEATURES

High efficiency

Frequency setting by internal preset function : 310 kHz, 620 kHz, 1 MHz

High accuracy reference voltage

:

± 0.7% (Ta = + 25 °C)

VIN Input voltage range

: 6 V to 28 V

Output voltage setting range

: 0.7 V to 5.3 V

Possible to select the automatic PFM/PWM selection mode or PWM-fixed mode

PAF frequency limitation function (Prohibit Audio Frequency) : > 30 kHz (Min)

Built-in boost diode, external fly-back diode not required

Built-in discharge FET

Built-in over voltage protection function

Built-in under voltage protection function

Built-in over temperature protection function

Built-in over current limitation function

Soft-start circuit without load dependence

Current sense resistor not required

Built-in synchronous rectification type output steps for N-ch MOS FET

Standby current

: 0 µA (Typ)

Package

: TSSOP24 (4.4 mm 6.5 mm 1.2 mm [Max])

APPLICATIONS

Digital TV

Photocopiers

STB

BD, DVD players/recorders

Projectors

etc.

Аналогичный номер детали - FREQ

производитель	номер детали	датащи	подробное описание детали
Intersil Corporation	FRE160D	49Kb / 6P	41A, 100V, 0.050 Ohm, Rad Hard, N-Channel Power MOSFETs June 1998
	FRE160H	49Kb / 6P	41A, 100V, 0.050 Ohm, Rad Hard, N-Channel Power MOSFETs June 1998
	FRE160R	49Kb / 6P	41A, 100V, 0.050 Ohm, Rad Hard, N-Channel Power MOSFETs June 1998
	FRE260D	49Kb / 6P	31A, 200V, 0.080 Ohm, Rad Hard, N-Channel Power MOSFETs June 1998
	FRE260H	49Kb / 6P	31A, 200V, 0.080 Ohm, Rad Hard, N-Channel Power MOSFETs June 1998

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Аналогичное описание - FREQ

производитель	номер детали	датащи	подробное описание детали
fujitsu semiconductor	MB39A110	418Kb / 32P	4-ch DC/DC Converter IC with Synchronous Rectification
fujitsu semiconductor	MB39A136PFT-G-JN-ERE1	1Mb / 52P	2ch PFM/PWM DC/DC converter IC with synchronous rectification
Cypress Semiconductor	MB39A135	1Mb / 42P	1ch DC/DC Converter IC with PFM/PWM Synchronous Rectification
	MB39A136	1Mb / 50P	2ch PFM/PWM DC/DC Converter IC with Synchronous Rectification
	MB39A214A	1Mb / 55P	2ch DC/DC Converter IC with PFM/PWM Synchronous Rectification
	MB39C006A	2Mb / 36P	1 ch DC/DC Converter IC with PFM/PWM Synchronous Rectification
	MB39C007	2Mb / 41P	2 ch DC/DC Converter IC with PFM/PWM Synchronous Rectification
	MB39C011A	1Mb / 53P	2ch DC/DC Converter IC with Synchronous Rectification Datasheet
	MB39C014	1Mb / 32P	1 ch DC/DC Converter IC with PFM/PWM Synchronous Rectification
	S6AP111A28	1Mb / 51P	2ch DC/DC Converter IC with PWM Synchronous Rectification

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