参数资料
型号: MAX8833ETJ+
厂商: Maxim Integrated Products
文件页数: 2/20页
文件大小: 0K
描述: IC REG BUCK ADJ 3A DL 32TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.6 V ~ 3.24 V
输入电压: 2.35 V ~ 3.6 V
PWM 型: 电压模式
频率 - 开关: 1MHz ~ 2MHz
电流 - 输出: 3A
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: 32-WFQFN 裸露焊盘
包装: 管件
供应商设备封装: 32-TQFN-EP(5x5)
Dual, 3A, 2MHz Step-Down Regulator
ABSOLUTE MAXIMUM RATINGS
IN_, LX_, V DD , VDL, PWRGD_ to GND..................-0.3V to +4.5V
V DD , VDL to IN_.....................................................-0.3V to +4.5V
EN_, SS_, COMP_, FB_, REFIN, FSYNC to GND ......-0.3V to the
lower of (V VDD + 0.3V) and (V VDL + 0.3V)
Continuous LX_ Current (Note 1) ...................................5.5A RMS
BST_ to LX_ ...........................................................-0.3V to +4.5V
PGND_ to GND......................................................-0.3V to +0.3V
Continuous Power Dissipation (T A = +70°C)
32-Pin Thin QFN (5mm x 5mm)
(derate 34.5mW/°C above +70°C) ..........................2758.6mW
Operating Ambient Temperature Range .............-40°C to +85°C
Operating Junction Temperature Range ...........-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
θ JC ...................................................................................1.7°C/W
Note 1: LX_ have internal clamp diodes to PGND_ and IN_. Applications that forward bias these diodes should take care not to
exceed the IC’s package power-dissipation limits.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN_ = V VDD = V VDL = 3.3V, V FB_ = 0.5V, V SS_ = V REFIN = 600mV, PGND_ = GND, R FSYNC = 10k Ω , L = 0.47μH, C BST_ = 0.1μF,
C SS_ = 0.022μF, PWRGD_ not connected; T A = -40°C to +85°C, typical values are at T A = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN1, IN2, VDL, V DD
IN_, VDL, and V DD Voltage Range
(Note 3)
2.35
3.60
V
IN_ Supply Current
V DD + VDL Supply Current
Shutdown Supply Current
(I IN1 + I IN2 + I VDD + I VDL )
IN_, V DD Undervoltage Lockout Threshold
UVLO Monitors V DD , IN1, and IN2
1MHz switching, no load
1MHz switching, V DD = VDL
V IN_ = V VDD = V VDL = V BST_
- V LX_ = 3.6V, V EN_ = 0V
Rising
Falling
V IN_ = 2.5V
V IN_ = 3.3V
V VDD = 2.5V
V VDD = 3.3V
T A = +25°C
T A = +85°C
1.8
1.9
2.8
7.2
10
0.3
2.0
1.9
3.5
5
15
11
2.2
mA
mA
μA
V
IN_, V DD Undervoltage Lockout Deglitch
BST1, BST2
2
μs
Shutdown BST_ Current
V IN_ = V VDD = V VDL = V BST_ =
3.6V, V EN_ = 0V, V LX_ = 0 or 3.6V
T A = +25°C
T A = +85°C
0.02
2
μA
COMP1, COMP2
COMP_ Clamp Voltage, High
V VDD = V IN_ = 2.3V to 3.6V, V FB_ = 0.7V
1.80
2.00
2.25
V
COMP_ Slew Rate
1.40
V/μs
COMP_ Shutdown Resistance
From COMP_ to GND, V EN_ = 0V
7
25
Ω
ERROR AMPLIFIER
FB_ Regulation Voltage
FB_ Regulation Voltage with
External Reference
Error Amplifier Common-Mode-Input Range
V COMP_ = 1V to 2V V VDD = V IN_ = 2.5V to 3.3V
V COMP_ = 1V to 2V V VDD = V IN_ = 2.5V to 3.3V
0.594
0.594
0
0.600
0.600
0.606
0.606
V VDD -
1.6
V
V
V
Error Amplifier Maximum Output Current
1
mA
FB_ Input Bias Current
V FB_ = 0.605V
T A = +25°C
T A = +85°C
40
37
300
nA
2
_______________________________________________________________________________________
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