参数资料
型号: MAX5089ATE+
厂商: Maxim Integrated Products
文件页数: 3/24页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 2A 16TQFN
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: 1
输出电压: 0.6 V ~ 20 V
输入电压: 4.5 V ~ 23 V
PWM 型: 电压模式
频率 - 开关: 312kHz ~ 2.1MHz
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: 管件
供应商设备封装: 16-TQFN-EP(5x5)
2.2MHz, 2A Buck Converters with an
Integrated High-Side Switch
ELECTRICAL CHARACTERISTICS (continued)
(V+ = V L = 5V or V+ = 5.5V to 23V, V EN = 5V, T A = T J = -40°C to +125°C, unless otherwise noted. Circuits of Figures 5 and 6. Typical
values are at T A = T J = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SOFT-START
Digital Soft-Start Period
Soft-Start Steps
Internal 6-bit DAC
4096
64
Clock
periods
Steps
ERROR AMPLIFIER (FB and COMP)
FB to COMP Transconductance
FB Input Bias Current
FB Input Voltage Set Point
COMP Sink-and-Source Current
Capability
g M
I FB
V FB
I COMP
1.20
0.5940
100
1.8
0.601
150
2.75
250
0.6095
mS
nA
V
μA
INTERNAL MOSFETs
On-Resistance n-Channel Power
MOSFET
R ON
V+ = V L = 5.2V, I SINK = 100mA
0.150
0.302
?
Leakage Current
Minimum Output Current
I LEAK
I OUT
V EN = 0V, V DRAIN = 23V,
SOURCE = PGND
V OUT = 3.3V, V+ = 12V (Note 2)
2
20
μA
A
Current Limit
On-Resistance Internal Low-Side
Switch
I LIMIT
R ONLSW
I SWITCH = 50mA, V+ = V L = 5.2V
2.2
2.8
20
3.5
38
A
?
SYNCHRONOUS RECTIFIER DRIVER (DL) (MAX5089 Only)
On-Resistance nMOS
On-Resistance pMOS
Peak Sink Current
Peak Source Current
R ONDLN
R ONDLP
I IDL_SINK
I IDL_SOURCE
I SINK = 0.1A
I SOURCE = 0.1A
1
1.9
1
0.75
6.7
11.1
?
?
A
A
OSCILLATOR (OSC)/SYNCHRONIZATION (SYNC)/CLOCK OUTPUT (CKO) (MAX5088 Only)
Clock Output-High Level
Clock Output-Low Level
V CKOH
V CKOL
V L = 5.2V, I SOURCE = 5mA
V L = 5.2V, I SINK = 5mA
R OSC = 5.62k ?
3.54
1900
2100
0.4
2400
V
V
Switching Frequency
f SW
V+ = V L = 5.2V
R OSC = 41.2k ?
275
312
350
kHz
R OSC = 10k ?
1130
1250
1380
Minimum Controllable On-Time
t ON_MIN
120
ns
Maximum Duty Cycle
D MAX
f SW = 2.2MHz
MAX5088
MAX5089
82
82
87.5
87.5
%
_______________________________________________________________________________________
3
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