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參數(shù)資料
| 型號： | LM26480QSQ-CF/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.4 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, QCC24 |
| 封裝： | 4 X 4 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, LLP-24 |
| 文件頁數(shù)： | 1/30頁 |
| 文件大小： | 2455K |
| 代理商： | LM26480QSQ-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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| LM2661MM/NOPB | SWITCHED CAPACITOR CONVERTER, 80 kHz SWITCHING FREQ-MAX, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM26480QSQX-8D/NOPB | 制造商:Texas Instruments 功能描述:Externally Programmable Dual High-Curren |
| LM26480QSQX-AA/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LM26480QSQX-CF/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| 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:線性穩(wěn)壓器 - 標準 DUAL HI-CRNT STEP- DOWN DC/DC RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
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