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参数资料
| 型号： | MAX1565ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 23/26页 |
| 文件大小： | 0K |
| 描述： | IC DGTL CAM PWR-SUP 5CH 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 应用： | 转换器控制器，数字式相机 |
| 输入电压： | 0.7 V ~ 5.5 V |
| 输出数： | 5 |
| 输出电压： | 3.3V，1.25 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 管件 |
Small, High-Efficiency, Five-Channel
Digital Still Camera Power Supply
When the MOSFET turns on, C1 discharges through
D3, thereby charging C3 to V OUT - minus the drop
L1
across D3 to create roughly the same voltage as
10 μ H
D2
V OUT+
V OUT + at V OUT - but with inverted polarity.
TO V BATT
1 μ F
C2
1 μ F
R1
1M ?
+15V
20mA
If different magnitudes are required for the positive and
negative voltages, a linear regulator can be used at
one of the outputs to achieve the desired voltages. One
AUX_
PWM
OUTSU
FB_
DL_
Q1
C1
1 μ F
D1
D3
R2
90.9k ?
C3
1 μ F
V OUT-
-15V
10mA
such connection is shown in Figure 10. This circuit is
somewhat unique in that a positive output linear regula-
tor is able to regulate the negative output. It does this
by controlling the charge to the flying capacitor rather
than directly regulating at the output.
Adding a MAX1801 Slave
The MAX1801 is a 6-pin SOT slave DC-to-DC controller
that can be connected to generate additional output
MAX1565
(PARTIAL)
Figure 9. ±15V Output Using a Boost with Charge-Pump
Inversion
voltages. It does not generate its own reference or
oscillator. Instead, it uses the reference and oscillator
of the MAX1565 (Figure 11). The MAX1801 controller
operation and design are similar to that of a MAX1565
AUX controller. All comments in the Auxiliary Controller
Component Selection section also apply to add-on
MAX1801 slave controllers. For more details, refer to
the MAX1801 data sheet.
TO V BATT
1 μ F
10 μ H
1 μ F
+15V
20mA
1M ?
AUX_
PWM
FB_
90.9k ?
OUTSU
DL_
Q1
1 μ F
1 μ F
110k ?
-7.5V
20mA
MAX1565
(PARTIAL)
IN
SHDN
1 μ F
549k ?
GND
OUT
FB_
+1.25V
MAX1616
Figure 10. +15V and -7.5V CCD Bias without Transformer
______________________________________________________________________________________
23
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1565ETJ+ | 功能描述:PMIC 解决方案 5Ch Digital Camera Power Supply RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX1565ETJ+T | 功能描述:PMIC 解决方案 5Ch Digital Camera Power Supply RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX1565ETJ-T | 功能描述:PMIC 解决方案 5Ch Digital Camera Power Supply RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX1565EVKIT | 制造商:Maxim Integrated Products 功能描述:SMALL, HIGH-EFFICIENCY, FIVE-CHANNEL DSC - Bulk |
| MAX1566ETL | 功能描述:PMIC 解决方案 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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