参数资料
型号: MAX867EUA+
厂商: Maxim Integrated Products
文件页数: 1/12页
文件大小: 0K
描述: IC REG BOOST ADJ 2.5MA 8UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.7 V ~ 6 V
输入电压: 0.8 V ~ 6 V
频率 - 开关: 250kHz
电流 - 输出: 2.5mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 管件
供应商设备封装: 8-uMAX
19-0374; Rev 1; 5/96
ATION
EVALU
VAILAB
A
KIT
LE
3.3V/5V or Adjustable-Output,
Single-Cell DC-DC Converters
_______________General Description
The MAX866 and MAX867 are ultra-small, high-efficiency,
CMOS, step-up, DC-DC switching regulators for 1-cell
battery-powered systems. The MAX866 accepts a posi-
tive input voltage between 0.8V and V OUT and converts it
to a higher, pin-selectable output voltage of 3.3V or 5V.
The MAX867 adjustable version accepts 0.8V to 6.0V
input voltages and generates a higher adjustable output
voltage in the 2.7V to 6.0V range. Typical efficiencies are
greater than 80%. Typical no-load supply current is
100μA (1μA in shutdown).
The MAX866/MAX867 combine ultra-low quiescent sup-
ply current and high efficiency to give maximum battery
life. Its high switching frequency permits the use of
small, low-cost inductors and capacitors. Additionally,
internal peak-current limiting protects the IC.
____________________________Features
o 0.8V to 6.0V Input Supply Voltage
o 0.9V Guaranteed Start-Up Supply Voltage
o >80% Efficiency Over Wide Load Range
o 100μA No-Load Battery Current (V OUT = 3.3V)
o 1μA Shutdown Mode
o Up to 250kHz Switching Frequency
o ±1.5% Reference Tolerance
o Low-Battery Detector (LBI/LBO)
o Available in Ultra-Small 8-Pin μMAX Package
(1.11mm high)
o Circuit Fits in 0.2in 2
______________Ordering Information
________________________Applications
Pagers
Remote Controls
Detectors
1-Cell Battery-Operated Equipment
Backup Supplies
PART
MAX866 C/D
MAX866ESA
MAX866EUA
MAX867 C/D
MAX867ESA
MAX867EUA
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
Dice*
8 SO
8 μMAX
Dice*
8 SO
8 μMAX
* Dice are tested at T A = +25°C only.
__________Typical Operating Circuit
INPUT
0.8V TO V OUT
_________________Pin Configurations
TOP VIEW
SHDN
1
8
LX
330 μ H
OUTPUT
3/5 2
REF 3
MAX866
7
6
GND
OUT
ON/OFF
SHDN
LX
5V OR 3.3V
LBO 4
5
LBI
MAX866
MBRS0520LTI
OR 1N5817
47 μ F
SO/μMAX
3V/5V SELECT
3/5
OUT
LOW-BATTERY
DETECTOR
LBI
SHDN
FB
1
2
8
7
LX
GND
INPUT
0.22 μ F
REF
GND
LBO
LOW-BATTERY
DETECTOR OUTPUT
REF 3
LBO 4
MAX867
6
5
OUT
LBI
SO/μMAX
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
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