参数资料
型号: MAX764CSA+
厂商: Maxim Integrated Products
文件页数: 7/12页
文件大小: 0K
描述: IC REG INV -5V/ADJ 0.26A 8SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
类型: 反相
输出类型: 两者兼有
输出数: 1
输出电压: -5V,-1 V ~ -16 V
输入电压: 3 V ~ 16 V
频率 - 开关: 300kHz
电流 - 输出: 260mA
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 8-SOIC
产品目录页面: 1409 (CN2011-ZH PDF)
-5V/-12V/-15V or Adjustable,
High-Efficiency, Low I Q DC-DC Inverters
____________________________Typical Operating Characteristics (continued)
(V+ = 5V, V OUT = -5V, T A = +25°C, unless otherwise noted.)
DISCONTINUOUS CONDUCTION AT
HALF CURRENT LIMIT
A
CONTINUOUS CONDUCTION AT
FULL CURRENT LIMIT
A
B
B
0A
0A
0V
5 μ s/div
CIRCUIT OF FIGURE 2, V+ = 5V, V OUT = -5V, I LOAD = 80mA
A: OUTPUT RIPPLE, 100mV/div
B: INDUCTOR CURRENT, 500mA/div
C: LX WAVEFORM, 10V/div
C
0V
5 μ s/div
CIRCUIT OF FIGURE 2, V+ = 5V, V OUT = -5V, I LOAD = 240mA
A: OUTPUT RIPPLE, 100mV/div
B: INDUCTOR CURRENT, 500mA/div
C: LX WAVEFORM, 10V/div
C
______________________________________________________________Pin Description
PIN
1
2
3
4
5
6, 7
8
NAME
OUT
FB
SHDN
REF
GND
V+
LX
FUNCTION
Sense Input for Fixed-Output Operation (V FB = V REF ). OUT must be connected to V OUT .
Feedback Input. Connect FB to REF to use the internal voltage divider for a preset output. For adjustable-
output operation, use an external voltage divider, as described in the section Setting the Output Voltage.
Active-High Shutdown Input. With SHDN high, the part is in shutdown mode and the supply current is less
than 5μA. Connect to ground for normal operation.
1.5V Reference Output that can source 100μA for external loads. Bypass to ground with a 0.1μF capacitor.
Ground
Positive Power-Supply Input. Must be tied together. Place a 0.1μF input bypass capacitor as close to
the V+ and GND pins as possible.
Drain of the Internal P-Channel Power MOSFET. LX has a peak current limit of 0.75A.
_______________________________________________________________________________________
7
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