参数资料
型号: MAX867EUA+
厂商: Maxim Integrated Products
文件页数: 6/12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
3.3V/5V or Adjustable-Output,
Single-Cell DC-DC Converters
____________________________Typical Operating Characteristics (continued)
(Circuits of Figure 2, T A = +25°C, unless otherwise noted.)
30
OUTPUT CURRENT CAPABILITY
vs. TEMPERATURE
30
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
1.255
REFERENCE VOLTAGE
vs. TEMPERATURE
V IN = 1.2V
28
V OUT = 3.47V
25
26
20
24
I OUT
1.250
15
3.3V MODE
V IN = 0.9V
22
I REF = 0A
10
20
1.245
-60 -40 -20
0
20
40
60
80 100
-60 -40 -20
0
20
40
60
80 100
-60 -40 -20
0
20
40
60
80 100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
______________________________________________________________Pin Description
MAX866
1
2
3
4
5
6
7
8
PIN
MAX867
1
2
3
4
5
6
7
8
NAME
– — — — –
S H D N
– –
3/ 5
FB
REF
LBO
LBI
OUT
GND
LX
FUNCTION
Shutdown Input. When low, the entire circuit is off and V OUT = V IN - V D, where V D is the
forward voltage drop of the external Schottky rectifier.
Selects the output voltage; connect to GND for 5V output, and to OUT for 3.3V output.
Feedback Input for adjustable-output operation. Connect to an external resistor voltage
divider between OUT and GND.
1.25V Reference Voltage Output. Bypass with 0.22μF to GND (0.1μF if there is no external
reference load). Maximum load capability is 250μA source, 20μA sink.
Low-Battery Output. An open-drain N-channel MOSFET sinks current when the voltage at
LBI drops below 1.25V.
Low-Battery Input. When the voltage on LBI drops below 1.25V, LBO sinks current.
If not used, connect to V IN .
Connect OUT to the regulator output. OUT provides bootstrap power to the IC.
Power Ground. Must be low impedance; solder directly to ground plane.
N-Channel Power-MOSFET Drain
6
_______________________________________________________________________________________
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