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参数资料
| 型号： | MAX1585ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 27/29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： | 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： | 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 |
| 产品目录页面： | 1422 (CN2011-ZH PDF) |
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5-Channel Slim DSC Power Supplies
V OUT
TO BATT
PVSU
MAX1584
TO
V BATT
DL
IN
MAX1801 OSC
OSC
MAX1584
MAX1585
(PARTIAL)
MAX1585
(PARTIAL)
PVSU
15V
FB
COMP
GND
REF
DCON
REF
AUX1
PWM
DL1
FB1
D6
100mA
AUX1OK
Figure 12. Adding a PWM Channel with an External MAX1801
Slave Controller
PV
PVSU
TO
GATED +5V
TO CCD
V SU
+5V
V BATT
CURRENT-
MODE
LXSU
L2
MAX1584/MAX1585
(PARTIAL)
AUX3 V-MODE
STEP-DOWN
PWM
DL3
TO PVSU
3.3V
LOGIC
STEP-UP
PWM
PGSU
FBSU
Figure 14. AUX1OK drives an external PFET that switches 5V to
FB3
ON3
TO V BATT
the CCD only after the +15V CCD bias supply is in regulation.
CURRENT-
SDOK
PVSD
OR PVSU
TO V BATT
OR PVSU
Selection section also apply to add-on MAX1801 slave
controllers. For more details, refer to the MAX1801 data
sheet.
Using SDOK and AUX1OK for Power Sequencing
The SDOK goes low when the step-down reaches regu-
lation. Some microcontrollers with low-voltage cores
require the high-voltage (3.3V) I/O rail not be powered
MODE
STEP-DOWN
PWM
LXSD
+1.5V
up until the core has a valid supply. The circuit in
Figure 13 accomplishes this by driving the gate of a
PFET connected between the 3.3V output and the
processor I/O supply.
PGSD
Figure 13. Using SDOK to Gate 3.3V Power to CPU After the
Core Voltage Is in Regulation
The MAX1801 controller operation and design are simi-
lar to that of the MAX1584/MAX1585 AUX controllers.
All comments in the AUX Controller Component
Figure 14 shows a similar application where AUX1OK
gates 5V power to the CCD only after the +15V output
is in regulation. Alternately, power sequencing can also
be implemented by connecting RC networks to delay
the appropriate converter ON_ inputs.
Using SCF for Full-Load Startup
The SCF output goes low only after the step-up reaches
regulation. It can be used to drive a P-channel MOSFET
switch that turns off the load of a selected supply in the
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1585ETJ+ | 功能描述:直流/直流开关转换器 5Ch Slim DSC Power Supply RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1585ETJ+T | 功能描述:直流/直流开关转换器 5Ch Slim DSC Power Supply RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1585ETJ-T | 功能描述:直流/直流开关转换器 5Ch Slim DSC Power Supply RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1585EVKIT | 功能描述:直流/直流开关转换器 Evaluation Kit for the MAX1585 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1586AETM | 功能描述:直流/直流开关调节器 PMICs w/Dynamic Core for PDAs RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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