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| 型号： | MAX8668ETEQ+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/18页 |
| 文件大小： | 388K |
| 描述： | IC REG QD BCK/LINEAR SYNC 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | 降压（降压）同步（2），线性（LDO）（2） |
| 功能： | 任何功能 |
| 输出数： | 4 |
| 频率 - 开关： | 1.5MHz |
| 电压/电流 - 输出 1： | 0.6 V ~ 3.3 V，600mA |
| 电压/电流 - 输出 2： | 0.6 V ~ 3.3 V，1.2A |
| 电压/电流 - 输出 3： | 2.8V，300mA |
| 带 LED 驱动器： | 无 |
| 带监控器： | 无 |
| 带序列发生器： | 无 |
| 电源电压： | 2.6 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（3x3） |
| 包装： | 带卷 (TR) |
General Description
The MAX8667/MAX8668 dual step-down converters
with dual low-dropout (LDO) linear regulators are
intended to power low-voltage microprocessors or
DSPs in portable devices. They feature high efficiency
with small external component size. The step-down
converters are adjustable from 0.6V to 3.3V (MAX8668)
or factory preset (MAX8667) with guaranteed output
current of 600mA for OUT1 and 1200mA for OUT2. The
1.5MHz hysteretic-PWM control scheme allows for tiny
external components and reduces no-load operating
current to 100礎 with all outputs enabled. Dual low-qui-
escent-current, low-noise LDOs operate down to 1.7V
supply voltage. The MAX8667/MAX8668 have individ-
ual enables for each output, maximizing flexibility.
The MAX8667/MAX8668 are available in the space-
saving, 3mm x 3mm, 16-pin thin QFN package.
Applications
Cell Phones/Smartphones
PDA and Palmtop Computers
Portable MP3 and DVD Players
Digital Cameras, Camcorders
PCMCIA Cards
Handheld Instruments
Features
o Tiny, Thin QFN 3mm x 3mm Package
o Individual Enables
o Step-Down Converters
600mA Guaranteed Output Current on OUT1
1200mA Guaranteed Output Current on OUT2
Tiny Size 2.2礖 Chip Inductor (0805)
Output Voltage from 0.6V to 3.3V (MAX8668)
Ultra-Fast Line and Load Transients
Low 25礎 Supply Current Each
o LDOs
300mA Guaranteed
Low 1.7V Minimum Supply Voltage
Low Output Noise
1.5MHz Dual Step-Down DC-DC Converters
with Dual LDOs and Individual Enables
________________________________________________________________Maxim Integrated Products 1
15
16
14
13
5
6
7
8
1
3
OUT1 (FB1)
4
12
10 9
EN1
EN2
OUT2 (FB2)
REF
GND
EN4
MAX8667
MAX8668
2
11
PGND1
THIN QFN
(3mm x 3mm)
TOP VIEW
( ) ARE FOR THE MAX8668
Pin Configuration
IN34
LX2
LX1
OUT2
OUT1
2.6V TO 5.5V
OUT3
OUT4
REF
GND
IN12
300mA
300mA
EN1
EN2
EN3
EN4
600mA
1.2A
PGND1 PGND2
10礔
4.7礔
4.7礔
4.7礔
0.01礔
2.2礖
2.2礖
2.2礔
2.2礔
MAX8667
Typical Operating Circuit
19-0784; Rev 1; 7/07
For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at
1-888-629-4642, or visit Maxims website at www.maxim-ic.com.
E
V
AL
U
A
T
IO
N
K
IT
A
V
A
IL
A
BL
E
Ordering Information continued at the end of data sheet.
Selector Guide appears at the end of data sheet.
Ordering Information
Note:All MAX8667/MAX8668 parts are in a 16-pin, thin QFN,
3mm x 3mm package and operate in the -40癈 to +85癈
extended temperature range.
+Denotes a lead-free package.
PART
PKG CODE
TOP MARK
MAX8667ETEAA+
T1633-4
AEQ
MAX8667ETEAB+
T1633-4
AFI
MAX8667ETEAC+
T1633-4
AFM
MAX8667ETECQ+
T1633-4
AFN
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8668ETET+ | 功能描述:直流/直流开关转换器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX8668ETET+T | 功能描述:直流/直流开关转换器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX8668ETEU+ | 功能描述:直流/直流开关转换器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX8668ETEU+ | 制造商:Maxim Integrated Products 功能描述:DC-DC STEP DOWN CONVERTER DUAL SMD |
| MAX8668ETEU+T | 功能描述:直流/直流开关转换器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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