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| 型号： | MAX15039ETG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19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） |
19-4321; Rev 3; 12/10
ATION
EVALU
AVAILA
KIT
BLE
6A, 2MHz Step-Down Regulator
with Integrated Switches
General Description
The MAX15039 high-efficiency switching regulator
delivers up to 6A load current at output voltages from
0.6V to 90% of V IN . The IC operates from 2.9V to 5.5V,
making it ideal for on-board point-of-load and postregu-
lation applications. Total output error is less than ±1%
over load, line, and temperature ranges.
The MAX15039 features fixed-frequency PWM mode
operation with a switching frequency range of 500kHz
to 2MHz set by an external resistor. The MAX15039
provides the option of operating in a skip mode to
improve light-load efficiency. High-frequency operation
allows for an all-ceramic capacitor design. The high
operating frequency also allows for small-size external
components.
The low-resistance on-chip nMOS switches ensure high
efficiency at heavy loads while minimizing critical induc-
tances, making the layout a much simpler task with
respect to discrete solutions. Following a simple layout
and footprint ensures first-pass success in new designs.
The MAX15039 comes with a high bandwidth (28MHz)
voltage-error amplifier. The voltage-mode control archi-
tecture and the voltage-error amplifier permit a type III
compensation scheme to be utilized to achieve maxi-
mum loop bandwidth, up to 20% of the switching fre-
quency. High loop bandwidth provides fast transient
Features
? Internal 26m Ω R DS(ON) High-Side and 20m Ω
R DS(ON) Low-Side MOSFETs
? Continuous 6A Output Current Over Temperature
? ±1% Output Accuracy Over Load, Line, and
Temperature
? Operates from 2.9V to 5.5V V IN Supply
? Adjustable Output from 0.6V to (0.9 x V IN )
? Soft-Start Reduces Inrush Supply Current
? 500kHz to 2MHz Adjustable Switching Frequency
? Compatible with Ceramic, Polymer, and
Electrolytic Output Capacitors
? Nine Preset and Adjustable Output Voltages
0.6V, 0.7V, 0.8V, 1.0V, 1.2V, 1.5V, 1.8V, 2.0V,
2.5V, and Adjustable
? Monotonic Startup for Safe-Start Into Prebiased
Outputs
? Selectable Forced PWM or Skip Mode for Light
Load Efficiency
? Overcurrent and Overtemperature Protection
? Output Current Sink/Source Capable with Cycle-
by-Cycle Protection
? Open-Drain, Power-Good Output
? Lead-Free, 4mm x 4mm, 24-Pin Thin QFN Package
Ordering Information
response, resulting in less required output capacitance
and allowing for all-ceramic-capacitor designs.
PART
MAX15039ETG+
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
24 Thin QFN-EP*
The MAX15039 provides two three-state logic inputs to
select one of nine preset output voltages. The preset
output voltages allow customers to achieve ± 1% out-
put-voltage accuracy without using expensive 0.1%
resistors. In addition, the output voltage can be set to
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Operating Circuit
any customer value by either using two external resis-
tors at the feedback with a 0.6V internal reference or
INPUT
2.9V TO 5.5V
IN
BST
applying an external reference voltage to the REFIN
input. The MAX15039 offers programmable soft-start
time using one capacitor to reduce input inrush current.
EN
MAX15039
LX
OUTPUT
1.8V, 6A
V DD
Applications
OUT
Server Power Supplies
POLs
ASIC/CPU/DSP Core and I/O Voltages
CTL2
CTL1
PGND
FB
DDR Power Supplies
Base-Station Power Supplies
Telecom and Networking Power Supplies
FREQ
REFIN
SS
COMP
V DD
RAID Control Power Supplies
MODE
Pin Configuration appears at end of data sheet.
GND
PWRGD
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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