- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄171838 > EN5365QI (ENPIRION INC) PDF資料下載
參數(shù)資料
| 型號： | EN5365QI |
| 廠商： | ENPIRION INC |
| 元件分類： | 穩(wěn)壓器 |
| 中文描述： | SWITCHING REGULATOR, 5000 kHz SWITCHING FREQ-MAX, QCC58 |
| 封裝： | HALOGEN FREE AND ROHS COMPLIANT, QFN-58 |
| 文件頁數(shù)： | 2/17頁 |
| 文件大?。?/td> | 825K |
| 代理商： | EN5365QI |
03816
9/18/2009
Rev:B
EN5365QI
Enpirion 2009 all rights reserved, E&OE
www.enpirion.com
Theory of Operation
Synchronous Buck Converter
Table 1: Output Voltage Select Table
VS2*
VS1*
VS0*
Output Voltage
0
3.3V
0
1
2.5V
0
1
0
1.8V
0
1
1.5V
1
0
1.25V
1
0
1
1.2V
1
0
0.8V
1
Reserved
The
EN5365QI
is
a
synchronous,
pin
programmable power supply with integrated
power
MOSFET
switches
and
integrated
inductor. The nominal input voltage range is
2.375-5.5V. The output can be set to common
pre-set voltages by connecting appropriate
combinations of 3 voltage selection pins to
ground. The feedback control loop is a type III
voltage-mode and the part uses a low-noise
PWM topology. Up to 6A of output current can be
drawn from this converter. The 5MHz operating
frequency enables the use of small-size output
capacitors.
Input Capacitor Selection
The EN5365QI requires about 40-50uF of input
capacitance. Low ESR ceramic capacitors are
required with X5R or X7R dielectric formulation.
Y5V or equivalent dielectric formulations must
not be used as they lose capacitance with
frequency, temperature and bias voltage.
The power supply has the following protection
features:
Programmable over-current protection (to
protect the IC from excessive load current)
Thermal shutdown with hysteresis.
Over-voltage protection
In some applications, lower value ceramic
capacitors maybe needed in parallel with the
larger capacitors in order to provide high
frequency decoupling.
Under-voltage lockout circuit to disable the
converter output when the input voltage is
less than approximately 2.2V
Additional features include:
Table 2. Recommended input capacitors.
Soft-start circuit, limiting the in-rush
current when the converter is powered up.
Description
MFG
P/N
22uF, 10V,
X5R, 1206
Murata
GRM31CR61A226ME19L
(2 capacitors needed)
Taiyo Yuden
LMK316BJ226ML-T
47uF, 10V,
X5R, 1210
Murata
GRM32ER61A476KE20L
(1 capacitor needed)
Taiyo Yuden
LMK325BJ476MM-T
Power good circuit indicating whether the
output voltage is within 90%-120% of the
programmed voltage.
Output Voltage Programming
The EN5365QI output voltage is programmed
using a 3-pin voltage-ID or VID selector. Three
binary VID pins allow the user to choose one of
seven pre-set voltages. Refer to table 1 for the
proper VID pin settings to program VOUT.
Output Capacitor Selection
The EN5365QI has been optimized for use with
approximately 50F of output capacitance. Low
ESR ceramic capacitors are required with X5R or
X7R dielectric formulation.
Y5V or equivalent
dielectric formulations must not be used as these
lose capacitance with frequency, temperature
and bias voltage.
The voltage select pins, VS0, VS1, and VS2, are
pulled-up internally and so will default to a logic
high, or “1”, if left “open”. Connecting the voltage
select pin to ground will result in a logic “0”.
10
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EN5366QI | |
| ENA2O-D16-R00064 | OPTICAL INTREMNETA ENCDES |
| ENA2O-D16-R0020000256 | OPTICAL INTREMNETA ENCDES |
| ENA2O-D20-L00025 | OPTICAL INTREMNETA ENCDES |
| ENA2O-D20-L00050 | OPTICAL INTREMNETA ENCDES |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EN5365QI-E | 功能描述:電源管理IC開發(fā)工具 6AMP MOD INT IND VID EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)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 |
| EN5366QI | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 6A BUCK CONVERTER INT INDUCT EXT VSEL 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| EN5366QI-E | 功能描述:電源管理IC開發(fā)工具 6AMP MOD INT IND EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)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 |
| EN5367QI | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 6A DC/DC BUCK CONV. W/ INTEGRATED INDUC. RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| EN5367QI-E | 功能描述:電源管理IC開發(fā)工具 EN5367QI EVAL 6A DC/DC BUCK RoHS:否 制造商:Maxim Integrated 產(chǎn)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。