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参数资料
| 型号： | MAX15039ETG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 6A 24TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 4.95 V |
| 输入电压： | 2.9 V ~ 5.5 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 500kHz ~ 2MHz |
| 电流 - 输出： | 6A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
6A, 2MHz Step-Down Regulator
with Integrated Switches
INPUT
2.9V TO 5.5V
C6
22 μ F
C7
0.1 μ F
IN
MAX15039
BST
C10
0.1 μ F
L1
0.47 μ H
2.2 Ω
C15
1000pF
OPTIONAL
OUTPUT
1.8V, 6A
LX
V DD
C5
2.2 μ F
OUT
C3
560pF
C8
22 μ F
C9
0.01 μ F
CTL2
CTL1
EN
PGND
R3
158 Ω
FREQ
FB
C2
1500pF
R2
2.67k Ω
REFIN
R4
49.9k Ω
C4
0.022 μ F
SS
COMP
C1
33pF
V DD
R1
MODE
GND
PWRGD
20k Ω
Figure 1. Typical Application Circuit: 1MHz, All-Ceramic-Capacitor Design with V IN = 2.9V to 5.5V and V OUT = 1.8V
Detailed Description
The MAX15039 high-efficiency, voltage-mode switching
regulator delivers up to 6A of output current. The
MAX15039 provides output voltages from 0.6V to 0.9 x
V IN from 2.9V to 5.5V input supplies, making it ideal for
on-board point-of-load applications. The output-voltage
accuracy is better than ±1% over load, line, and tem-
perature.
The MAX15039 features a wide switching frequency
range, allowing the user to achieve all-ceramic-capaci-
tor designs and fast transient responses (see Figure 1).
The high operating frequency minimizes the size of
external components. The MAX15039 is available in a
small (4mm x 4mm), lead-free, 24-pin thin QFN pack-
age. The REFIN function makes the MAX15039 an ideal
candidate for DDR and tracking power supplies. Using
internal low-R DS(ON) (20m Ω for the low-side n-channel
MOSFET and 26m Ω for the high-side n-channel
MOSFET) maintains high efficiency at both heavy-load
and high-switching frequencies.
The MAX15039 employs voltage-mode control architec-
ture with a high bandwidth (28MHz) error amplifier. The
voltage-mode control architecture allows up to 2MHz
switching frequency, reducing board area. The op amp
voltage-error amplifier works with type III compensation
to fully utilize the bandwidth of the high-frequency
switching to obtain fast transient response. Adjustable
soft-start time provides flexibilities to minimize input
startup inrush current. An open-drain, power-good
(PWRGD) output goes high when V FB reaches 92.5% of
V REFIN and V REFIN is greater than 0.54V.
The MAX15039 provides an option for three modes of
operation: regular PWM, PWM mode with monotonic
startup into prebiased output, or skip mode with monot-
onic startup into prebiased output.
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相关代理商/技术参数 |
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|---|---|
| MAX15039EVKIT+ | 功能描述:电源管理IC开发工具 6A 2MHz Step-Down w/Integrated Switch 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 |
| MAX1503XETJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1503YETJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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