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参数资料
| 型号： | MAX15003ATM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/31页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 48TQFN-EP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| PWM 型： | 电压模式 |
| 输出数： | 3 |
| 频率 - 最大： | 2.2MHz |
| 电源电压： | 5.5 V ~ 23 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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MAX15003
Triple-Output Buck Controller with
Tracking/Sequencing
Pin Description
10
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NAME
CT
IN
REG
SEL
PGND1
DL1
DREG1
LX1
DH1
BST1
CSN1
CSP1
ILIM1
COMP1
EN1
FUNCTION
RESET Timeout Capacitor Connection. Connect a timing capacitor from CT to SGND to set the RESET
delay. CT sources 2μA into the timing capacitor. When the voltage at CT passes 2V, open-drain RESET
goes high impedance.
Supply Input Connection. Connect to an external voltage source from 5.5V to 23V. For 4.5V to 5.5V input
application, connect IN and REG together.
5V Regulator Output. Bypass with a 2.2μF ceramic capacitor to SGND.
Track/Sequence Select Input. Connect SEL to REG to configure as a triple tracker at startup or connect SEL
to SGND to configure as a triple sequencer or leave SEL unconnected to configure as a dual tracker and
independent sequencer. Note: When configured as a triple sequencer, each rail is independently enabled
using the EN_.
Controller 1 Power-Ground Connection. Connect the input filter capacitor’s negative terminal, the source of
the synchronous MOSFET, and the output filter capacitor’s return to PGND1. Connect externally to SGND at
a single point near the input capacitor return terminal.
Controller 1 Low-Side Gate Driver Output. DL1 is the gate driver output for the synchronous MOSFET.
Controller 1 Low-Side Gate Driver Supply. Connect externally to REG and the anode of the boost diode.
Connect a minimum of 0.1μF ceramic capacitor from DREG1 to PGND1.
Controller 1 High-Side MOSFET Source Connection/Synchronous MOSFET Drain Connection. Connect the
inductor and the negative side of the boost capacitor to LX1.
Controller 1 High-Side Gate Driver Output. DH1 drives the gate of the high-side MOSFET.
Controller 1 High-Side Gate Driver Supply. Connect BST1 to the cathode of the boost diode and to the
positive terminal of the boost capacitor.
Controller 1 Negative Current-Sense Input. Connect CSN1 to the synchronous MOSFET drain (connected to
LX1). When using a current-sense resistor, connect CSN1 to the junction of a low-side MOSFET’s source
and the current-sense resistor. See Figure 11.
Controller 1 Positive Current-Sense Input. Connect CSP1 to the synchronous MOSFET source (connected to
PGND1). When using a current-sense resistor, connect CSP1 to the PGND1 end of the current-sense
resistor.
Controller 1 Valley Current-Limit Set Output. Connect a 25k ? to 150k ? resistor, R ILIM1 , from ILIM1 to SGND
to program the valley current-limit threshold from 50mV to 300mV. ILIM1 sources 20μA out to R ILIM1 . The
resulting voltage divided by 10 is the valley current-limit threshold. When using a precision current-sense
resistor, connect a resistive divider from REG to ILIM1 to SGND to set the valley current limit. See Figure 11.
Controller1 Error Transconductance Amplifier Output. Connect COMP1 to the compensation feedback
network.
Controller 1 Enable Input. EN1 must be above 1.24V, V EN-TH , for the PWM controller to start Output 1.
Controller 1 is the master. Use the master as the highest output voltage in a coincident tracking
configuration.
Maxim Integrated
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| MAX15003EVKIT+ | 功能描述:电源管理IC开发工具 MAX15003 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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| MAX15004AAUE/V+T | 功能描述:电流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX15004AAUE+ | 功能描述:电流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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