BD8317GWL-E2

$1.53

Description：IC REG BOOST ADJ 1A DL UCSP50L1
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:edf97fbca499 Category: Voltage Regulators - DC DC Switching Regulators Brand: Rohm Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC REG BOOST ADJ 1A DL UCSP50L1
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Up
Output Configuration：Positive and Negative (Dual Rail)
Topology：Boost
Output Type：Adjustable
Number of Outputs：2
Voltage - Input (Min)：2.5V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：5.5V, -1V
Voltage - Output (Max)：18V, -9V
Current - Output：1A (Switch)
Frequency - Switching：800kHz
Synchronous Rectifier：No
Operating Temperature：-35°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：11-UFBGA, CSPBGA
Supplier Device Package：UCSP50L1
Grade：-
Qualification：-

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BD8317GWL-E2

Overview

The BD8317GWL-E2 is a boost and inverting dual-channel switching regulator IC from ROHM Semiconductor, designed for TFT-LC power supplies. It integrates two channels with built-in Nch FETs (230mΩ/22V) and Pch Pow FETs (230mΩ/15V). The device supports a wide input voltage range of 2.5V to 5.5V and operates at high frequencies up to 1.76MHz. Key features include independent channel control via STB pins, soft start functionality (4.2ms typical), and comprehensive protection circuits including OCP, SCP, UVLO, and TSD. It utilizes the compact UCSP50L1 package.

Feature Summary

Dual-channel architecture with integrated FETs for boost and inverting topologies
Independent ON/OFF control for each channel to enable low-power standby sequences
Built-in soft start and discharge switch for the step-up channel
Comprehensive circuit protection against over-current, short-circuit, under-voltage lockout, and thermal shutdown

Applications

Power supply solutions for portable devices
TFT-LC display driver power management
Miniaturized power systems requiring small footprint components

Procurement Notes

Verify the specific suffix 'E2' indicates RoHS compliance and lead-free status as per official datasheets. Confirm that the UCSP50L1 package dimensions match your PCB layout requirements. Ensure the operating temperature range of -35°C to 85°C aligns with your environmental specifications. Check for any automotive grade restrictions if applicable, as this is a standard-grade product not recommended for vehicle equipment.

Selection Notes

Select this component when a dual-channel DC-DC converter is needed for space-constrained applications. It is suitable for designs requiring both boosted and inverted voltages from a single lithium-ion or similar battery source. Consider the 1.76MHz switching frequency for smaller external passive components. Verify that the 2.5V minimum input voltage meets your system's lowest operational battery level.

Part Context

This part belongs to ROHM's series of small-package switching regulators designed for portable electronics. It shares the UCSP50L1 form factor with related models like the BD8316GWL, offering a compact solution for multi-rail power architectures in mobile and handheld devices.