MB39A214APFT-G-JNERE1

MB39A214APFT-G-JNERE1 Datasheet


MB39A214A

Part Datasheet
MB39A214APFT-G-JNERE1 MB39A214APFT-G-JNERE1 MB39A214APFT-G-JNERE1 (pdf)
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MB39A214A
2ch DC/DC Converter IC with PFM/PWM Synchronous Rectification

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.
efficiency
setting by internal preset function 310 kHz, 620 kHz, 1 MHz
accuracy reference voltage
± Ta = + 25°C

Input voltage range
6 V to 28 V
voltage setting range

V to V
to select the automatic PFM/PWM selection mode or PWM-fixed mode
frequency limitation function Prohibit Audio Frequency > 30 kHz Min
boost diode, external fly-back diode not required
discharge FET
over voltage protection function
under voltage protection function
over temperature protection function
over current limitation function
circuit without load dependence
sense resistor not required
synchronous rectification type output steps for N-ch MOS FET
current
0 µA Typ

Package

TSSOP24 mm x mm x mm [Max]

TV Photocopiers STB DVD players/recorders etc.
• 198 Champion Court
• San Jose, CA 95134-1709
• 408-943-2600

MB39A214A

Contents
Pin Assignment 3 Pin 4 Block Diagram 5 Absolute Maximum Ratings 6 Recommended Operating Conditions 7 Electrical Characteristics 8 Typical 11 14 I/O Pin Equivalent Circuit Diagram 23 Example Application Circuit 25 Part 26 Application 27 Setting Operating 27 Selecting 33 Reference Data 43 Usage 47 Ordering Information 48 EV Board Ordering Information 48 RoHS Compliance Information Of Lead Pb Free Version 48 Marking Format Lead Free 48 Labeling Sample Lead free 49 MB39A214APFT Recommended Conditions of Moisture Sensitivity Level 50 Package Dimensions 52 Major Changes 53 Document 54

Page 2 of 55

Pin Assignment

TOP VIEW

BST1 1 EN1 2

VOUT1 3 FB1 4 CS1 5 GND 6

FREQ 7 CS2 8 FB2 9

VOUT2 10 EN2 11

BST2 12
24 DRVH1 23 LX1 22 DRVL1 21 PGND 20 ILIM1 19 VCC 18 VB 17 MODE 16 ILIM2 15 DRVL2 14 LX2 13 DRVH2

FPT-24P-M09

MB39A214A

Page 3 of 55

MB39A214A

Pin Descriptions

Pin No. 1 2 3 4 5 6

Pin Name BST1 EN1 VOUT1 FB1 CS1 GND

FREQ

VOUT2

BST2

DRVH2

DRVL2

ILIM2

MODE

ILIM1

PGND

DRVL1

DRVH1

I/O I

CH1 boost capacitor connection pin.

CH1 enable pin.

CH1 input pin for DC/DC output voltage.

CH1 input pin for feedback voltage.

CH1 soft-start time setting capacitor connection pin.

Ground pin.

Frequency switching signal input pin.

FREQ GND Short Switching frequency

FREQ Open

Switching frequency

FREQ VB Short Switching frequency
310 kHz 620 kHz 1 MHz
Ordering Information

Part number MB39A214APFT
24-pin plastic TSSOP FPT-24P-M09

Package

Remarks
EV Board Ordering Information

EV board number MB39A214A-EVB-01

TSSOP-24

Remarks

RoHS Compliance Information Of Lead Pb Free Version

The LSI products of Cypress with “E1” are compliant with RoHS Directive, and has observed the standard of lead, cadmium, mercury, Hexavalent chromium, polybrominated biphenyls PBB , and polybrominated diphenyl ethers PBDE . A product whose part number has trailing characters “E1” is RoHS compliant.

Marking Format Lead Free Version
39A214A

XXXX

E1 XXX

INDEX Lead-free version

Page 48 of 55

Labeling Sample Lead free version

MB39A214A

Lead-free mark JEITA logo JEDEC logo

The part number of a lead-free product has the trailing characters "E1".
"ASSEMBLED IN CHINA" is printed on the label of a product assembled in China.

Page 49 of 55

MB39A214A

MB39A214APFT Recommended Conditions of Moisture Sensitivity Level
[Cypress Recommended Mounting Conditions] Item

Condition

Mounting Method

IR infrared reflow , warm air reflow

Mounting times
2 times

Before opening

Please use it within two years after manufacture.

Storage period

From opening to the 2nd reflow

When the storage period after opening was exceeded

Less than 8 days

Please process within 8 days after baking 125°C ±3°C, 24H+ Baking can be performed up to two times.

Storage conditions
5°C to 30°C, 70% RH or less the lowest possible humidity
[Mounting Conditions] IR Infrared Reflow
260°C 245°C

Main heating
170 °C to
190 °C
"M" rank 250°C Max a Temperature Increase gradient b Preliminary heating c Temperature Increase gradient d Peak temperature d' Main Heating
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Datasheet ID: MB39A214APFT-G-JNERE1 508285