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参数资料
| 型号： | LM26480QSQX-CF/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.4 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, QCC24 |
| 封装： | 4 X 4 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, LLP-24 |
| 文件页数： | 1/30页 |
| 文件大小： | 2455K |
| 代理商： | LM26480QSQX-CF/NOPB |
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LM26480
November 1, 2010
Externally Programmable Dual High-Current Step-Down
DC/DC and Dual Linear Regulators
General Description
The LM26480 is a multi-functional Power Management Unit,
optimized for low-power digital applications. This device inte-
grates two highly efficient 1.5A step-down DC/DC converters
and two 300 mA linear regulators. The LM26480 is offered in
a tiny 4 x 4 x 0.8mm LLP-24 pin package.
Key Specifications
Step-Down DC/DC Converter (Buck)
■ 1.5A output current
■ V
OUT from:
— Buck1 : 0.8V–2.0V @ 1.5A
— Buck2 : 1.0V–3.3V @ 1.5A
■ Up to 96% efficiency
■ ±3% FB voltage accuracy
■ 2 MHz PWM switching frequency
■ PWM - PFM automatic mode change under low loads
■ Automatic soft start
Linear Regulators (LDO)
■ V
OUT of 1.0V–3.5V
■ ±3% FB voltage accuracy
■ 300 mA output current
■ 25 mV (typ) dropout
Features
■ Compatible with advanced applications processors and
FPGAs
■ 2 LDOs for powering Internal processor functions and I/Os
■ Precision internal reference
■ Thermal overload protection
■ Current overload protection
■ 24-lead 4 × 4 × 0.8mm LLP package
■ External Power-On-Reset function for Buck1 and Buck2
■ Undervoltage lock-out detector to monitor input supply
voltage
■ Note: LM26480Q is an Automotive-Grade product that is
AECQ-100 Grade 1 qualified.
Applications
■ Core digital power
■ Applications processors
■ Peripheral I/O power
Typical Application Circuit
30040401
2010 National Semiconductor Corporation
300404
www.national.com
LM26480
Externally
Programmable
Dual
High-Current
Step-Down
DC/DC
and
Dual
Linear
Regulators
相关PDF资料 |
PDF描述 |
|---|---|
| LM26480QSQ-CF/NOPB | 2.4 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, QCC24 |
| LM26480SQ-BF/NOPB | 2.4 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, QCC24 |
| LM26480SQX-BF/NOPB | 2.4 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, QCC24 |
| LM2661M/NOPB | SWITCHED CAPACITOR CONVERTER, 80 kHz SWITCHING FREQ-MAX, PDSO8 |
| LM2660MMX/NOPB | SWITCHED CAPACITOR CONVERTER, 40 kHz SWITCHING FREQ-MAX, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM26480SQ-AA | 制造商:Texas Instruments 功能描述:DC/ DC STEP DOWN, DUAL LINEAR REG, IC |
| LM26480SQ-AA/NOPB | 功能描述:线性稳压器 - 标准 DUAL HI-CRNT STEP- DOWN DC/DC RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| LM26480SQ-AA/S7002404 | 制造商:Texas Instruments 功能描述: |
| LM26480SQ-AAEV | 功能描述:BOARD EVALUATION LM26480SQ-AA RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM26480SQ-AAEV/NOPB | 功能描述:电源管理IC开发工具 LM26480SQ-AAEV EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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