BU28TA2WHFV(2009) Просмотр технического описания (PDF) - ROHM Semiconductor

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BU28TA2WHFV
(Rev.:2009)

High-speed Load Response FULL CMOS LDO Regulators

ROHM Semiconductor 

CMOS LDO Regulator Series for Portable Equipments

High-speed

Load Response

FULL CMOS LDO Regulators

BUTA2WNVX Series, BUTA2WHFV Series

No.09020EAT01

●Description

BU□□TA2WNVX /HFV series is high-performance FULL CMOS regulator with 200-mA output, which is mounted on

microminiature package SSON004X1216 (1.2 mm  1.6 mm  0.6 mm) &HVSOF5(1.6mm X 1.6mm X0.6mm). It has

excellent noise characteristics and load responsiveness characteristics despite its low circuit current consumption of 40 A.

It is most appropriate for various applications such as power supplies for logic IC, RF, and camera modules.

Microminiature package SSON004X1216 & HVSOF5 with built-in heatsink is adopted for the package, which contributes to

the space-saving design of the set.

●Features

1) High-accuracy output voltage of 1% (25 mV on 1.5-V & 1.8-V products）

2) High ripple rejection: 70 dB (Typ., 1 kHz, VOUT1.8 V))

3) Compatible with small ceramic capacitor (CIN=Co=1.0 F)

4) Low current consumption: 40 A

5) ON/OFF control of output voltage

6) With built-in overcurrent protection circuit and overheat protection circuit

7) With built-in output discharge circuit

8) Adopting microminiature power package SSON004X1216

●Applications

Battery-powered portable equipment, etc.

 Absolute maximum rating

Parameter

Symbol

Limits

Unit

Maximum applied power voltage

VMAX

-0.3 ~ +6.5

V

220*1

Power dissipation

Pd1

(SSON004X1216)

mW

Pd2 410*2 (HVSOF5)

mW

Maximum junction temperature

TjMAX

+125

°C

Operational temperature range

Topr

-40 ~ +85

°C

Storage temperature range

Tstg

-55 ~ +125

°C

*1 When 1 PCB (70 mm  70 mm, thickness 1.6-mm glass epoxy) a standard ROHM board is implemented.

Reduced to 2.2 mW/C when used at Ta=25C or higher.

*2 When 1 PCB (70 mm  70 mm, thickness 1.6-mm glass epoxy) a standard ROHM board is implemented.

Reduced to 4.1 mW/C when used at Ta=25C or higher.

 Recommended operating range (Do not exceed Pd.）

Parameter

Symbol

Limits

Unit

Input power supply voltage

VIN

2.5 ~ 5.5

V

Maximum output current

IMAX

200

mA

 Recommended operating conditions

Parameter

Input capacitor

Output capacitor

Symbol

CIN

CO

Min. Typ. Max. Unit

Conditions

0.5*3 1.0

－

μF A ceramic capacitor is recommended.

0.5*3 1.0

－

μF A ceramic capacitor is recommended.

*3 Set the capacity value of the capacitor so that it does not fall below the minimum value, taking temperature characteristics,

DC device characteristics, and change with time into consideration.

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© 2009 ROHM Co., Ltd. All rights reserved.

1/27

2009.05 - Rev.B

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