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| 型号： | MAX767EAP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 20-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 340kHz |
| 占空比： | 95% |
| 电源电压： | 4.5 V ~ 5.5 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 包装： | 带卷 (TR) |
19-0224; Rev 3; 7/00
KIT MA
UATION ET
EVAL TA SHE
FOLLO
WS DA
NUAL
5V-to-3.3V, Synchronous, Step-Down
Power-Supply Controller
________________General Description
____________________________Features
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
o
o
o
o
o
>90% Efficiency
700μA Quiescent Supply Current
120μA Standby Supply Current
4.5V-to-5.5V Input Range
Low-Cost Application Circuit
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.
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
________________________Applications
PART
TEMP. RANGE
PIN-
PACKAGE
REF
TOL
V OUT
(V)
Local 5V-to-3.3V DC-DC Conversion
Microprocessor Daughterboards
Power Supplies up to 10A or More
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
±1.8% 3.3
±1.8% 3.45
±1.8% 3.6
±1.2% 3.3
MAX767C/D
0°C to +70°C
Dice*
—
—
_________Typical Application Circuit
INPUT
4.5V TO 5.5V
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
__________________Pin Configuration
TOP VIEW
V CC
ON
BST
DH
LX
MAX767
DL
PGND
CS
FB
GND
REF
3.3 μ H
OUTPUT
3.3V
AT 5A
CS 1
SS 2
ON 3
GND 4
GND 5
GND 6
GND 7
REF 8
SYNC 9
MAX767
20 FB
19 DH
18 LX
17 BST
16 DL
15 V CC
14 V CC
13 PGND
12 N.C.
Pentium is a trademark of Intel. PowerPC is a trademark of IBM.
V CC 10
SSOP
11 GND
________________________________________________________________ Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX767EVKIT-SO | 功能描述:DC/DC 开关控制器 Evaluation Kit for the MAX767 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX767RCAP | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX767RCAP-T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX767REAP | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX767REAP+ | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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