XC9235A30DER-G datasheet, PDF - EEWORLD Datasheet

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XC9235A30DER-G: DescriptionIC reg buck sync 3V 0.6A usp-6; CategoryPower/power management The power supply circuit; File Size815KB，34 Pages; ManufacturerTOREX; Websitehttp://www.torex.co.jp/chinese/; Environmental Compliance

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XC9235A30DER-G Overview

IC reg buck sync 3V 0.6A usp-6

XC9235A30DER-G Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	TOREX
Reach Compliance Code	compliant
control mode	CURRENT-MODE
JESD-30 code	R-PDSO-N6
Humidity sensitivity level	1
Number of terminals	6
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output current	0.6 A
Package body material	PLASTIC/EPOXY
encapsulated code	SON
Encapsulate equivalent code	SOLCC6,.08,20
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Certification status	Not Qualified
surface mount	YES
Maximum switching frequency	3450 kHz
Temperature level	INDUSTRIAL
Terminal surface	Nickel/Silver/Gold (Ni/Ag/Au)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	DUAL

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XC9235/XC9236/XC9237

Series

600mA Driver Tr. Built-In, Synchronous Step-Down DC/DC Converters

ETR0514-014

The XC9235/XC9236/XC9237 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.42Ω

P-channel MOS driver transistor and 0.52ΩN-channel MOS switching transistor, designed to allow the use of ceramic

capacitors. Operating voltage range is from 2.0V to 6.0V (A∼C types), 1.8V to 6.0V (D∼G types). For the D/F types which

have a reference voltage of 0.8V (accuracy:

±2.0%),

the output voltage can be set from 0.9V by using two external resistors.

The A/B/C/E/G types have a fixed output voltage from 0.8V to 4.0V in increments of 0.05V (accuracy:

±2.0%).

The device

provides a high efficiency, stable power supply with an output current of 600mA to be configured using only a coil and two

capacitors connected externally.

With the built-in oscillator, either 1.2MHz or 3.0MHz can be selected for suiting to your

particular application. As for operation mode, the XC9235 series is PWM control, the XC9236 series is automatic PWM/PFM

switching control and the XC9237 series can be manually switched between the PWM control mode and the automatic

PWM/PFM switching control mode, allowing fast response, low ripple and high efficiency over the full range of loads (from light

load to heavy load).

The soft start and current control functions are internally optimized. During stand-by, all circuits are shutdown to reduce current

consumption to as low as 1.0μA or less. The B/F/G types have a high speed soft-start as fast as 0.25ms in typical for quick

turn-on. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor is forced OFF

when input voltage becomes 1.4V or lower.

The B to G types integrate C

discharge function which enables the electric charge at the output capacitor C

to be discharged

via the internal discharge switch located between the L

and V

pins. When the devices enter stand-by mode, output voltage

quickly returns to the V

level as a result of this function.

Four types of package SOT-25, USP-6C, USP-6EL and WLP-5-03 are available.

■GENERAL

DESCRIPTION

☆GreenOperation

Compatible

■APPLICATIONS

●Smart

phones / Mobile phones

●Bluetooth

●Mobile

devices / terminals

●Portable

game consoles

●Digital

still cameras / Camcorders

●Note

PCs / Tablet PCs

■FEATURES

: 0.42Ω P-ch driver transistor

0.52Ω N-ch switch transistor

Input Voltage

: 2.0V ~ 6.0V (A/B/C types)

1.8V ~ 6.0V (D/E/F/G types)

Output Voltage

: 0.8V ~ 4.0V (Internally set)

0.9V ~ 6.0V (Externally set)

High Efficiency

: 92% (TYP.)*

Output Current

: 600mA

Oscillation Frequency

: 1.2MHz, 3.0MHz (+15%)

Maximum Duty Cycle

: 100%

Control Methods

: PWM (XC9235)

PWM/PFM Auto (XC9236)

PWM/PFM Manual (XC9237)

Function

: Current Limiter Circuit Built-In

(Constant Current & Latching)

Discharge (B/C/D/E/F/G types)

High Speed Soft Start (B/F/G type)

Capacitor

: Low ESR Ceramic Capacitor

Operating Ambient Temperature

:-40℃ ~ +85℃

Packages

: SOT-25 (A/B/C types only)

USP-6C

USP-6EL(A/B/C types only)

WLP-5-03(A/B types only)

Environmentally Friendly

: EU RoHS Compliant, Pb Free

* Performance depends on external components and wiring on the PCB.

Driver Transistor Built-In

■TYPICAL

APPLICATION CIRCUIT

●XC9235/XC9236/XC9237

A/B/C/E/G types (Output Voltage Fixed)

■TYPICAL

PERFORMANCE CHARACTERISTICS

●XC9235/XC9236/XC9237

D/F types (Output Voltage Externally Set)

Efficiency: EFFI (%)

Efficency:EFFI(%)

●Efficiency

vs. Output Current（f

OSC

=1.2MHz, V

OUT

=1.8V）

100

0.1

100

1000

Output Current:IOUT(mA)

2.4V

VIN= 4.2V

3.6V

PWM Control

VIN= 4.2V

3.6V

2.4V

PWM/PFM Automatic Sw itching Control

1/34

XC9235A30DER-G Related Products

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Description	IC reg buck sync 3V 0.6A usp-6	Switching Regulator/Controller, Current-mode, 0.6A, 1380kHz Switching Freq-Max, PDSO6	IC reg buck sync 1.5V 0.6A usp-6	IC reg buck sync 3V 0.6A usp-6	Output current: 600mA Switch operating frequency: 1.2MHz Output type: Fixed Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive	Output current: 600mA Switch operating frequency: 1.2MHz Output type: Fixed Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive

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