- 您现在的位置：买卖IC网 > PDF目录1848 > MAX8625AETD+T (Maxim Integrated Products)IC REG BUCK BST SYNC 0.8A 14TDFN PDF资料下载
参数资料
| 型号： | MAX8625AETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BST SYNC 0.8A 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 3.3V，1.25 V ~ 4 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 800mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 其它名称： | MAX8625AETD+TDKR |
19-1006; Rev 4; 4/09
ATION
EVALU
AVAILA
KIT
BLE
High-Efficiency, Seamless Transition,
Step-Up/Down DC-DC Converter
General Description
Features
The MAX8625A PWM step-up/down regulator is intend-
ed to power digital logic, hard disk drives, motors, and
other loads in portable, battery-powered devices such
as PDAs, cell phones, digital still cameras (DSCs), and
?
?
?
Four Internal MOSFET True H-Bridge Buck/Boost
Glitch-Free, Buck-Boost Transitions
Minimal Output Ripple Variation on Transitions
MP3 players. The MAX8625A provides either a fixed
3.3V or adjustable output voltage (1.25V to 4V) at up to
0.8A from a 2.5V to 5.5V input. The MAX8625A utilizes
a 2A peak current limit.
Maxim ’s proprietary H-bridge topology provides a
seamless transition through all operating modes without
the glitches commonly seen with other devices. Four
internal MOSFETs (two switches and two synchronous
? Up to 92% Efficiency
? 37 μ A (typ) Quiescent Current in Skip Mode
? 2.5V to 5.5V Input Range
? Fixed 3.3V or Adjustable Output
? 1 μ A (max) Logic-Controlled Shutdown
? True Shutdown
rectifiers) with internal compensation minimize external
components. A SKIP input selects a low-noise, fixed-
frequency PWM mode, or a high-efficiency skip mode
where the converter automatically switches to PFM
mode under light loads for best light-load efficiency.
The internal oscillator operates at 1MHz to allow for a
small external inductor and capacitors.
The MAX8625A features current-limit circuitry that shuts
down the IC in the event of an output overload. In addi-
tion, soft-start circuitry reduces inrush current during
startup. The IC also features True Shutdown TM , which
disconnects the output from the input when the IC is
?
?
?
?
?
?
Output Overload Protection
Internal Compensation
Internal Soft-Start
1MHz Switching Frequency
Thermal-Overload Protection
Small 3mm x 3mm, 14-Pin TDFN Package
Ordering Information
disabled. The MAX8625A is available in a 3mm x 3mm,
14-pin TDFN package.
Applications
PART
MAX8625AETD+
PIN-
PACKAGE
14 TDFN-EP**
TOP MARK
ABQ
PDAs and Smartphones
DSCs and Camcorders
MP3 Players and Cellular Phones
Battery-Powered Hard Disk Drive (HDD)
Pin Configuration
TOP VIEW
Note: The device is specified over the -40°C to +85°C extended
temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
**EP = Exposed pad.
Typical Operating Circuit
14
13
12
11
10
9
8
INPUT
2.7V TO 5.5V
IN
LX1
LX2
OUT
OUTPUT
3.3V
MAX8625A
PWM
GND
+
EP
SKIP
SKIP
MAX8625A
FB
1
2
3
4
5
6
7
EP = EXPOSED PAD.
TDFN-EP
OFF
ON
ON
REF
True Shutdown is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
1
相关PDF资料 |
PDF描述 |
|---|---|
| MAX8627ETD+T | IC REG BOOST SYNC ADJ 1A 14TDFN |
| MAX8632ETI+T | IC PWR SUPPLY DDR 28-TQFN |
| MAX8636ETA+T | IC REG LDO ADJ .3A 8TDFN |
| MAX8640YEXT08+T | IC REG BUCK SYNC 0.8V .5A SC70-6 |
| MAX8643AETG/V+T | IC REG BUCK SYNC ADJ 3A 24TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8625AEVKIT+ | 制造商:Maxim Integrated Products 功能描述:EVAL BD FOR MAX8625A - Boxed Product (Development Kits) |
| MAX8625EVKIT+ | 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY SEAMLESS TRANSITIO - Boxed Product (Development Kits) |
| MAX8627ETD+ | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP UP 14TDFN EP - Rail/Tube |
| MAX8627ETD+T | 功能描述:直流/直流开关转换器 20uA 1MHz Synch Boost 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 |
| MAX8627EVKIT | 制造商:Maxim Integrated Products 功能描述:LOW VBATT 20+A IQ 1MHZ SYNCHRONO - Rail/Tube |
发布紧急采购，3分钟左右您将得到回复。