PDF BD8317GWL Data sheet ( Hoja de datos )

Número de pieza	BD8317GWL
Descripción	Step-up and inverted 2-channel DC/DC converter
Fabricantes	ROHM Semiconductor
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No Preview Available ! Datasheet Single-chip Type with Built-in FET Switching Regulator Series Step-up and inverted 2-channel DC/DC converter with Built-in Power MOSFET BD8317GWL ●Description The BD8317GWL is step-up and inverted 2-channel switching regulator with integrated internal high-side MOSFET. With wide input range from 2.5~5.5V ,it suitable for application of portable item. In addition,The small package design is ideal for miniaturizing the power supply. ●Features ■ Wide input voltage range of 2.5V to 5.5 V ■ High frequency operation 0.8MHz ■ Incorporates Nch FET of 230mΩ/22V and Pch Pow FET of 230mΩ/15V ■ Incorporates Soft Start (4.2msec(typ))and hight side switch of boost channel ■ Independent ON/OFF signal(STB). Built-in discharge SW for step up channel ■ Small package UCSP50L1( 1.8mm×1.5mm, 4× 3 grid, 11pin, WLCSP) ■ Circuits protection OCP,SCP,UVLO,TSD ●Important Specifications ■ Input voltage range 2.5～5.5 [V] ■ Output boost voltage Input voltage(max)~18 [V] ■ Output inverted voltage ■ Maximum current ■ Operating frequency ■ Nch FET ON resistance ■ Pch FET ON resistance ■ Standby current -9.0～-1.0 [V] 1.0A](max) 0.8 [MHz] (typ.) 230[mΩ] 230[mΩ] 1[μA](max) ●Package UCSP50L1 (WLCSP) 1.8mm×1.5mm×0.5mm, 4×3glid,11pin, ●Application ■ LCD battery ■ CCD battery ■ Portable items that are represented by mobile phone and DSC STRUCTURE : Silicon Monolithic Integrated Circuit ●Typical Application Input: 2.5 to 5.5V, ch1 output: -5.0 V /100mA(MAX), ch2 output:5.0 V /100mA(MAX) 0.1uF/10V Vin→ 2.5～5.5V 10uF/10V EN CH1→ EN CH２→ VREF VDD STB1 STB2 GND NON1 INV2 LX1 DIS1 HS2L LX2 10uH 20kΩ 100k Ω Vout1: -5.0V/100mA 10uF/16V 10uH 160k Ω Vout2: 5.0V/100mA 10uF/16V 30kΩ Figure 1. Application schematic www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. TS22111・14・001 1/20 TSZ02201-0Q2Q0AJ00010-1-2 2012.09.5 Rev. 001 1 page BD8317GWL ●Absolute maximum ratings(T=25℃) Parameter Symbol Rating Unit Maximum power supply voltage VDD STB1,STB2 －0.3～7 －0.3～7 V V IHS2L 1.0 A Maximum input current ILX1 1.0 A ILX2 1.0 A VDD-LX1 15 V LX2 22 V Maximum input voltage NON1 -0.3～7 V INV2 -0.3～7 V DIS1 -9～0.3 V Power dissipation Pd 730 mW Operating temperature range Topr －35～+85 ℃ Storage temperature range Tstg －55～+150 ℃ Junction temperature Tjmax +150 ℃ ((*1) When mounted on 74.2×74.2×1.6mm and operated over 25℃ Pd reduces by 4.96mW/℃. ●Recommended operating conditions Parameter Power supply voltage Inverted output voltage Step up output voltage Symbol VDD VO1 VO2 Standard value MIN TYP MAX 2.5 － 5.5 -9.0 － -1.0 VCC - 18 Units V V V www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. TS22111・14・001 5/20 TSZ02201-0Q2Q0AJ00010-1-2 2012.09.5 Rev. 001 5 Page BD8317GWL ●Example of Application1 Input: 2.5 to 5.5 V, ch1 output: -5.0 V / 100m A(MAX), ch2 output:5.0V/100mA(MAX) 30V/200mA (RB521-S30) 10μH (DFE252012C) 10μF/16V 100kΩ 20kΩ 0.1μF/10V 160kΩ 30kΩ 10μF/10V BD8317GWL CSP-SMT 30V/200mA (RB521-S30) 10μF/16V 10μH (DFE252012C) Figure 17. Example of Application1 www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. TS22111・14・001 11/20 TSZ02201-0Q2Q0AJ00010-1-2 2012.09.5 Rev. 001 11 Page

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