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參數資料
| 型號： | EN5311QI |
| 廠商： | ENPIRION INC |
| 元件分類： | 穩(wěn)壓器 |
| 中文描述： | 1 A SWITCHING REGULATOR, 4000 kHz SWITCHING FREQ-MAX, QCC20 |
| 封裝： | 5 X 5 MM, 1.10 MM HEIGHT, HAOLGEN FREE AND ROHS COMPLIANT, QFN-20 |
| 文件頁數： | 1/16頁 |
| 文件大?。?/td> | 290K |
| 代理商： | EN5311QI |
03799
11/24/2009
Rev:B
*Optimized PCB Layout file downloadable from the Enpirion Website to assure first pass design success.
EN5311QI
1A Synchronous Buck Regulator
With Integrated Inductor
RoHS Compliant
Halogen Free
Featuring Integrated Inductor Technology
Voltage
Select
DAC
Switch
VREF
(+)
(-)
Error
Amp
V
SENSE
V
FB
V
OUT
VS0 VS1 VS2
Package Boundry
P-Drive
N-Drive
UVLO
Thermal Limit
Current Limit
Soft Start
Sawtooth
Generator
(+)
(-)
PWM
Comp
V
IN
ENABLE
GND
Logic
Compensation
Network
Product Highlights
Revolutionary Integrated Inductor
5mm x 4mm x1.1mm QFN package
Very small total solution foot print*
4 MHz switching frequency
Only two low cost MLCC caps required
Designed for low noise/low EMI
Very low ripple voltage; 5mVp-p Typical
High efficiency, up to 95%
Wide 2.4V to 6.6V input range
1000mA continuous output current
Less than 1 μA standby current.
Excellent transient performance
3 Pin VID Output Voltage select
External divider: 0.6V to VIN-Vdropout
100% duty cycle capable
Short circuit and over current protection
UVLO and thermal protection
RoHS compliant; MSL 3 260°C reflow
Product Overview
The Ultra-Low-Profile EN5311QI is targeted to
applications where board area and profile are
critical. EN5311QI is a complete power
conversion solution requiring only two low cost
ceramic MLCC caps.
Inductor, MOSFETS,
PWM, and compensation are integrated into a
tiny 5mm x 4mm x 1.1mm QFN package. The
EN5311QI is engineered to simplify design and
to minimize layout constraints.
4 MHz
switching frequency and internal type III
compensation
provides
superior
transient
response.
With a 1.1 mm profile, the
EN5311QI is ideal for space and height
constrained applications.
A 3-pin VID output voltage selector provides
seven pre-programmed output voltages along
with an option for external resistor divider.
Output voltage can be programmed on-the-fly
to provide fast, dynamic voltage scaling.
Typical Application Circuit
VIN
VSense
Vin
VS1
VS2
VS0
E
N
53
11
QI
10
μF
4.7
μF
VOUT
Vout
GND
ENABLE
VFB
Voltage
Select
Figure 1. Typical application circuit.
Applications
Area constrained applications
Noise Sensitive Applications such as A/V
and RF
LDO replacement for improved thermals
Set top box/home gateway
Smart phones, PDAs
VoIP and Video phones
Personal Media Players
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相關代理商/技術參數 |
參數描述 |
|---|---|
| EN5311QI-E | 功能描述:電源管理IC開發(fā)工具 Eval Board EN5311QI 1A Sync. Buck Convtr RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| EN5312Q | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Fully Integrated Voltage Mode Synchronous Buck PWM DC-DC Converter Module |
| EN5312QI | 功能描述:開關變換器、穩(wěn)壓器與控制器 1A Sync Buck Reg w/ Integrated Inductor RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| EN5312QI-E | 功能描述:電源管理IC開發(fā)工具 1A Synchronous Buck Regulator Eval Board RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| EN5312QI-T | 功能描述:開關變換器、穩(wěn)壓器與控制器 1A Sync Buck Reg RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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