参数资料
型号: MAX1896EUT#TG16
厂商: Maxim Integrated Products
文件页数: 5/10页
文件大小: 0K
描述: IC REG BOOST ADJ 0.5A SOT23-6
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.6 V ~ 13 V
输入电压: 2.6 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 1MHz ~ 1.8MHz
电流 - 输出: 500mA
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: SOT-23-6
包装: 带卷 (TR)
供应商设备封装: SOT-6
1.4MHz SOT23 Current-Mode
Step-Up DC-DC Converter
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V IN = 3.3V, T A = +25°C, unless otherwise noted.)
STARTUP WAVEFORM
MAXIMUM OUTPUT CURRENT
WITH SOFT-START
SWITCHING WAVEFORM
vs. INPUT VOLTAGE
600
I OUT = 100mA
SHDN
5V/div
LX VOLTAGE
5V/div
500
400
OUTPUT
VOLTAGE
5V/div
OUTPUT
VOLTAGE
AC-COUPLED
300
V OUT = 5V
V OUT = 12V
200mV/div
200
INDUCTOR
CURRENT
500mA/div
INDUCTOR
CURRENT
500mA/div
I OUT = 150mA
100
MAXIMUM OUTPUT
CURRENT DEFINED AT
90% OF NO LOAD
OUTPUT VOLTAGE
0
2ms/div
400ns/div
2.5
3.0
3.5
4.0
4.5
5.0
5.5
V IN = 3.3V, C SS = 33nF,
C OUT = 3.3μF TANTALUM + 0.1μF CERAMIC
V IN = 5V,
C OUT = 0.1μF CERAMIC + 2.2μF CERAMIC
INPUT VOLTAGE (V)
CIRCUIT OF FIGURE 3
Pin Description
PIN
1
2
3
4
5
6
NAME
LX
GND
FB
SHDN
SS
IN
FUNCTION
Power Switching Connection. Connect LX to the inductor and output rectifier. Connect components
as close to LX as possible.
Ground
Feedback Input. Connect a resistive voltage-divider from the output to FB to set the output voltage.
See the Setting the Output Voltage section.
Shutdown Input. Drive SHDN low to turn off the converter. To automatically start the converter,
connect SHDN to IN. Drive SHDN with a slew rate of 0.1V/μs or greater. Do not leave SHDN
unconnected. SHDN draws up to 50μA.
Soft-Start Input. Connect a soft-start capacitor from SS to GND to soft-start the converter. Leave SS
open to disable the soft-start function. See the Soft-Start section.
Internal Bias Voltage Input. Connect IN to the input voltage source. Bypass IN to GND with a
1μF or greater capacitor as close to IN as possible.
_______________________________________________________________________________________
5
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