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| 型号： | MAX8815AETB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC ADJ 1A 10TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 3.3 V ~ 5 V |
| 输入电压： | 1.2 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2MHz |
| 电流 - 输出： | 1A |
| 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： | 10-WFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 其它名称： | MAX8815AETB+TDKR |
19-4092; Rev 1; 8/08
EVALUATION KIT
AVAILABLE
1A, 97% Efficiency, 30μA Quiescent Current
Step-Up Converter with True Shutdown
General Description
The MAX8815A DC-DC step-up converter is a high-effi-
ciency, low quiescent current, synchronous step-up
converter with True Shutdown? and inrush-current lim-
iting. The MAX8815A generates any output voltage
from 3.3V to 5V from a 2-cell NiMH/NiCd or a single-cell
Li+/Li polymer battery.
The MAX8815A uses two modes of operation. The first
mode of operation (normal) uses only 30μA (typ) quies-
cent current and allows the converter to switch only
when needed at no load and light loads. Under moder-
ate and heavy loads (typically above 90mA), the
MAX8815A uses a fixed-frequency pulse-width modula-
tion (PWM) technique. This mode allows maximum effi-
ciency at light loads. The second mode of operation is
a fixed-frequency forced-pulse-width modulation
Features
? Up to 97% Efficiency with Internal Synchronous
Rectifier
? Low 30μA Quiescent Current
? Guaranteed 500mA Output Current at V OUT = 5V
from 1.8V Input
? Guaranteed 1A Output Current at 5V from 2.5V
Input
? Low-Noise Constant Frequency Operation (FPWM
Mode)
? 2MHz PWM Switching Frequency
? Preset (5V) or Adjustable Output
? Controlled Current in Soft-Start Limits Inrush
Current
(FPWM) mode where the converter switches at a fixed
frequency irrespective of the load. This mode allows for
easy noise filtering and lower output ripple.
The MAX8815A has a preset 2.5A current limit, allowing
500mA load at 1.8V input and 1A load at 2.5V input when
?
?
?
?
True Shutdown
Internal Compensation
Overload/Short-Circuit Protection
0.1μA Shutdown Current
the output is set to 5V. Features include soft-start, which
limits inrush current during startup, True Shutdown, and
internal compensation. The MAX8815A is available in a
compact 10-pin, 3mm x 3mm TDFN package.
The MAX8815A evaluation kit can help shorten the time
required for system design.
? Thermal Shutdown
? Compact 10-Pin, 3mm x 3mm TDFN Package
Ordering Information
PART
PIN-PACKAGE
TOP MARK
Applications
MAX8815AETB+
10 TDFN-EP*
AUH
DSC and DVC
Microprocessor/DSP Core Power
Cell Phones, PDAs, MP3 Players
Portable Handheld Devices
PCMCIA Cards
True Shutdown is a trademark of Maxim Integrated Products, Inc.
+Denotes a lead-free/RoHS-compliant package.
*EP = Exposed pad.
Note: This device operates in the -40°C to +85°C extended
operating temperature range.
Simplified Operating Circuit
Pin Configuration
INPUT VOLTAGE
TOP VIEW
1.2V TO 5.5V
BATT
LX
OUTPUT VOLTAGE
10
9
8
7
6
ON
POUT
5V UP TO 1A
MAX8815A OUTS
+
MAX8815A
FB
1
2
3
4
5
SKIPB
GND
________________________________________________________________ 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
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| MAX8815AEVKIT+ | 功能描述:DC/DC 开关控制器 Evaluation Kit for the MAX8815A 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 |
| MAX8818AETM+ | 功能描述:PMIC 解决方案 10Ch PMIC for 2-Cell Li+ DVC System RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8818AETM+T | 功能描述:PMIC 解决方案 10Ch PMIC for 2-Cell Li+ DVC System RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8818BETM+ | 功能描述:PMIC 解决方案 10Ch PMIC for 2-Cell Li+ DVC System RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8818BETM+T | 功能描述:PMIC 解决方案 10Ch PMIC for 2-Cell Li+ DVC System RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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