参数资料
型号: MAX17083ETG+T
厂商: Maxim Integrated Products
文件页数: 8/15页
文件大小: 0K
描述: IC REG BUCK ADJ 5A 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: 0.75 V ~ 2.7 V
输入电压: 2.4 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 500kHz
电流 - 输出: 5A
同步整流器:
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)
Low-Voltage, Internal Switch,
Step-Down Regulator
C1
1 μ F
V CC
IN
C OUT
2x 10 μ F
5V INPUT
SET
FB REGULATION
VOLTAGE (V)
ON
OFF
EN
SET
BST
LX
C BST
0.1 μ F
L1
1 μ H
C OUT
220 μ F, 6m Ω
OUTPUT
1.1V AT 5A
V CC
OPEN
1.8
1.5
MAX17083
REF
GND
1.1
0.75
C3
0.1 μ F
REF
FB
V CC
FREQ
V CC
SWITCHING
FREQUENCY (MHz)
1.5
(OPEN)
FREQ
POK
R4
100k Ω
OPEN
1.0
REF
GND
0.75
0.5
GND (EP)
Figure 1. Standard Application Circuit
Detailed Description
The MAX17083 standard application circuit (Figure 1)
provides a single 1.1V/5A chipset supply. The
MAX17083 features a step-down switching regulator
with dual internal n-channel MOSFET power switches.
These step-down regulators use a fixed-frequency, cur-
rent-mode control scheme compensated by the output
capacitor, providing an easy-to-implement architecture
without sacrificing fast transient response. These regu-
lators also provide peak current-limit protection, and
operate pulse-skipping mode at light loads to maintain
high efficiency.
Independent enable input and open-drain power-good
output allow flexible system power sequencing. The
voltage soft-start gradually ramps up the output voltage
within a predictable time period and reduces inrush
current. The MAX17083 features outputs undervoltage,
output overvoltage, and thermal-fault protection.
Reference (REF)
The 1.25V reference is accurate to ±1% over tempera-
ture and load, making REF useful as a precision system
reference. Bypass REF to GND with a 0.1μF or greater
ceramic capacitor. The reference sources up to 50μA
and sinks 5μA to support external loads. If highly accu-
rate specifications are required for the main SMPS out-
put voltages, the reference should not be loaded.
Loading the reference slightly reduces the output volt-
age accuracy because of the reference load-regulation
error as defined in the Electrical Characteristics table.
8
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MAX17085BETL+T 功能描述:电池管理 Dual Main Step-Down Controller RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
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