参数资料
型号: MAX5090CATE/V+T
厂商: Maxim Integrated Products
文件页数: 6/17页
文件大小: 0K
描述: IC REG BUCK ADJ 2A 16WQFN
产品变化通告: Product Discontinuation 28/Nov/2011
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: 1.27 V ~ 11 V
输入电压: 6.5 V ~ 76 V
PWM 型: 电压模式
频率 - 开关: 127kHz
电流 - 输出: 2A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-WQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 16-TQFN-EP(5x5)
2A, 76V, High-Efficiency MAXPower Step-Down
DC-DC Converters
Typical Operating Characteristics (continued)
(V IN = 12V, V ON/ OFF =12V, T A = T J = -40°C to +125°C, unless otherwise noted. Typical values are at T A = +25°C. See the Typical
Operating Circuit, if applicable.)
LOAD-TRANSIENT RESPONSE
LX WAVEFORMS
LX WAVEFORMS
(MAX5090AATE)
MAX5090 toc19
(MAX5090AATE)
MAX5090 toc20
(MAX5090AATE)
MAX5090 toc21
V OUT = 3.3V
A
V OUT = 3.3V
A
V OUT = 3.3V
A
400 μ s/div
A: V OUT , 200mV/div, AC-COUPLED
B: I OUT , 500mA/div, 0.1A TO 1A
LX WAVEFORM
B
B
0
4 μ s/div
A: SWITCH VOLTAGE (LX PIN), 20mV/div (V IN = 48V)
B: INDUCTOR CURRENT, 2A/div (I 0 = 2A)
STARTUP WAVEFORM
4 μ s/div
A: SWITCH VOLTAGE, 20V/div (V IN = 48V)
B: INDUCTOR CURRENT, 200mA/div (I 0 = 75mA)
STARTUP WAVEFORM
B
(MAX5090AATE)
MAX5090 toc22
(I OUT = 0)
MAX5090 toc23
(I OUT = 2A)
MAX5090 toc24
V OUT = 3.3V
7.0
4 μ s/div
A: SWITCH VOLTAGE, 20V/div (V IN = 48V)
B: INDUCTOR CURRENT, 200mA/div (I OUT = 0)
PEAK SWITCH CURRENT
vs. INPUT VOLTAGE
A
B
C SS = 0.047 μ F
4ms/div
A: V ON/OFF , 2V/div
B: V OUT , 1V/div
SYNCHRONIZATION
MAX5090 toc26
A
B
C SS = 0.047 μ F
4ms/div
A: V ON/OFF , 2V/div
B: V OUT , 1V/div
SYNCHRONIZATION
MAX5090 toc27
A
B
6.0
5.0
MAX5090AATE
V OUT = 3.3V
5% DROP IN V OUT
PULSED OUTPUT LOAD
f SYNC = 119kHz
SYNC
2V/div
f SYNC = 200kHz
SYNC
2V/div
4.0
3.0
LX
LX
2.0
1.0
10V/div
10V/div
6.5
16
26
36
46
56
66
76
2 μ s/div
1 μ s/div
INPUT VOLTAGE (V)
6
_______________________________________________________________________________________
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