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參數(shù)資料
| 型號： | MAX767 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual J-K Negative-Edge-Triggered Flip-Flops With Preset And Clear 16-CDIP -55 to 125 |
| 中文描述： | 5V至3.3V輸出、同步整流、降壓型電源控制器 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 192K |
| 代理商： | MAX767 |
_______________General Desc ription
The MAX767 is a high-efficiency, synchronous buck
controller IC dedicated to converting a fixed 5V supply
into a tightly regulated 3.3V output. Two key features set
this device apart from similar, low-voltage step-down
switching regulators: high operating frequency and all
N-channel construction in the application circuit. The
300kHz operating frequency results in very small, low-
cost external surface-mount components.
The inductor, at 3.3μH for 5A, is physically at least five
times smaller than inductors found in competing solu-
tions. All N-channel construction and synchronous rectifi-
cation result in reduced cost and highest efficiency.
Efficiency exceeds 90% over a wide range of loading,
eliminating the need for heatsinking. Output capacitance
requirements are low, reducing board space and cost.
The MAX767 is a monolithic BiCMOS IC available in
20-pin SSOP packages. For other fixed output voltages
and package options, please consult the factory.
________________________Applic ations
Local 5V-to-3.3V DC-DC Conversion
Microprocessor Daughterboards
Power Supplies up to 10A or More
____________________________Features
o
>90% Efficiency
o
700μA Quiescent Supply Current
o
120μA Standby Supply Current
o
4.5V-to-5.5V Input Range
o
Low-Cost Application Circuit
o
All N-Channel Switches
o
Small External Components
o
Tiny Shrink-Small-Outline Package (SSOP)
o
Predesigned Applications:
Standard 5V to 3.3V DC-DC Converters up to 10A
High-Accuracy Pentium P54C VR-Spec Supply
o
Fixed Output Voltages Available:
3.3V (Standard)
3.45V (High-Speed Pentium)
3.6V (PowerPC)
______________Ordering Information
M
5V-to-3.3V, S ync hronous, S tep-Down
Power-S upply Controller
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
FB
DH
LX
BST
GND
ON
SS
CS
TOP VIEW
MAX767
DL
V
CC
V
CC
PGND
REF
GND
GND
GND
N.C.
GND
V
CC
SYNC
SSOP
__________________Pin Configuration
OUTPUT
3.3V
AT 5A
INPUT
4.5V TO 5.5V
LX
DL
GND
MAX767
V
CC
REF
3.3
μ
H
BST
DH
PGND
CS
FB
ON
________Typic al Applic ation Circ uit
19-0224; Rev 2; 8/94
Follows Data Sheet
PART
TEMP. RANGE
PIN-
PACKAGE
MAX767CAP
MAX767RCAP
MAX767SCAP
MAX767TCAP
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
20 SSOP
20 SSOP
20 SSOP
20 SSOP
Pentium is a trademark of Intel.
PowerPC is a trademark of IBM.
MAX767C/D
Ordering Information continued at end of data sheet.
*
Contact factory for dice specifications.
0°C to +70°C
Dice*
REF.
TOL.
±1.8%
±1.8%
±1.8%
±1.2% 3.3V
–
V
OUT
3.3V
3.45V
3.6V
–
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX767CAP | 5V-to-3.3V, Synchronous, Step-Down Power-Supply Controller |
| MAX767RCAP | 5V-to-3.3V, Synchronous, Step-Down Power-Supply Controller |
| MAX767REAP | 5V-to-3.3V, Synchronous, Step-Down Power-Supply Controller |
| MAX767TEAP | 5V-to-3.3V, Synchronous, Step-Down Power-Supply Controller |
| MAX768 | Dual J-K Negative-Edge-Triggered Flip-Flops With Preset And Clear 16-CFP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX767CAP | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX767CAP+ | 功能描述:DC/DC 開關(guān)控制器 5-3.3V Out Synchrons Power Supply Ctlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX767CAP+T | 功能描述:DC/DC 開關(guān)控制器 5-3.3V Out Synchrons Power Supply Ctlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX767CAP-T | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX767EAP | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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