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参数资料
| 型号： | MAX1565ETJ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | Small, High-Efficiency, Five-Channel Digital Still Camera Power Supply |
| 中文描述： | 3.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, QCC32 |
| 封装： | 5 X 5 MM, 0.80 MM HEIGHT, MO-220WHHD-2, TQFN-32 |
| 文件页数： | 10/26页 |
| 文件大小： | 512K |
| 代理商： | MAX1565ETJ |
M
Small, High-Efficiency, Five-Channel
Digital Still Camera Power Supply
10
______________________________________________________________________________________
Pin Description (continued)
FUNCTION
PIN
NAME
8
FBSD
Step-Down Converter Feedback Input. For a 1.5V output, short FBSELSD to GND and connect FBSD to
OUTSD. For other voltages, short FBSELSD to OUTSU and connect a resistive voltage-divider from OUTSD
to FBSD to GND. The FBSD feedback threshold is 1.25V. This pin is high impedance in shutdown.
Auxiliary Controller 1 On/Off Control Input. Drive ON1 high to turn on. This pin has an internal 330k
pulldown resistor. ON1 cannot start until OUTSU is in regulation.
Auxiliary Controller 2 On/Off Control Input. Drive ON2 high to turn on. This pin has an internal 330k
pulldown resistor. ON2 cannot start until OUTSU is in regulation.
Auxiliary Controller 3 On/Off Control Input. Drive ON3 high to turn on. This pin has an internal 330k
pulldown resistor. ON3 cannot start until OUTSU is in regulation.
Step-Up Converter On/Off Control. Drive ONSU high to turn on the step-up converter. All other control pins
are locked out until 2ms after the step-up output has reached its final value. This pin has an internal 330k
resistance to GND.
Reference Output. Bypass REF to GND with a 0.1μF or greater capacitor. The maximum allowed load on
REF is 200μA. REF is actively pulled to GND when all converters are shut down.
Step-Up Converter Feedback Input. To regulate OUTSU to 3.35V, connect FBSELSU to GND. FBSU may be
connected to OUTSU or GND. For other output voltages, connect FBSELSU to OUTSU and connect a
resistive voltage-divider from OUTSU to FBSU to GND. The FBSU feedback threshold is 1.25V. This pin is
high impedance in shutdown.
Step-Up Converter Compensation Node. Connect a series RC from COMPSU to GND to compensate the
control loop. COMPSD is pulled to GND in normal shutdown and during thermal shutdown (see the
Step-
Down Compensation
section).
9
ON1
10
ON2
11
ON3
12
ONSU
13
REF
14
FBSU
15
COMPSU
16
FBSE LS U
Step-Up Feedback Select Pin. With FBSELSU = GND, OUTSU regulates to 3.35V. With FBSELSU = OUTSU,
FBSU regulates to a 1.25V threshold for use with external feedback resistors. This pin is high impedance in
shutdown.
FBSE LS D
Step-Down Feedback Select Pin. With FBSELSD = GND, FBSD regulates to 1.5V. With FBSELSD = OUTSU,
FBSD regulates to 1.25V for use with external feedback resistors. This pin is high impedance in shutdown.
Auxiliary Controller 1 Feedback Select Pin. With FBSEL1 = GND and FB1 regulates to 5V. With FBSEL1 =
OUTSU, FB1 regulates to 1.25V for use with external feedback resistors. This pin is high impedance in
shutdown.
Oscillator Control. Connect a timing capacitor from OSC to GND and a timing resistor from OSC to OUTSU
to set the oscillator frequency between 100kHz and 1MHz. This pin is high impedance in shutdown.
Power Ground. Connect PGNDA and PGNDB together and to GND with short trace as close to the IC as
possible.
Step-Up Converter Power-Switching Node. Connect LXSU to the step-up converter inductor. LXSU is high
impedance in shutdown.
OUTSUA
Step-Up Converter Output. OUTSUA is the power output of the step-up converter. Connect OUTSUA to
OUTSUB at the IC.
SDOK
This open-drain output goes high impedance when the step-down has successfully completed soft-start.
17
18
FBSEL1
19
OSC
20
PGNDB
21
LXSU
22
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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