参数资料
型号: MAX15112EVKIT#
厂商: Maxim Integrated Products
文件页数: 3/23页
文件大小: 0K
描述: EVAL KIT STEP-DOWN 12A MAX15112
产品培训模块: Obsolescence Mitigation Program
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,非隔离
功率 - 输出: 18W
输出电压: 1.5V
电流 - 输出: 12A
输入电压: 2.7 V ~ 5.5 V
稳压器拓扑结构: 降压
频率 - 开关: 1MHz
板类型: 完全填充
已供物品:
已用 IC / 零件: MAX15112
MAX15112
High-Efficiency, 12A, Current-Mode Synchronous
Step-Down Regulator with Integrated Switches
DC ELECTRICAL CHARACTERISTICS (continued)
(V IN = 5V, see the Typical Operating Circuits , T A = -40 N C to +85 N C. Typical values are at T A = +25 N C, unless otherwise noted.) (Note 5)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GROUND SENSE
GSNS Output Current
V SS/REFIN = 0.6V, V GSNS = 0V
52
F A
POWER SWITCHES
High-side switch
18
Current-Limit Threshold
LX Leakage Current
BST Leakage Current
Low-side switch, sinking
Low-side switch, sourcing
V EN = 0V
V EN = 0V
18
18
3
3
A
F A
F A
BST On-Resistance
LX RMS Output Current
R ON_BST
I BST = 50mA
12
0.63
I
A
OSCILLATOR
Switching Frequency
Maximum Duty Cycle
Minimum Controllable On-Time
f SW
D MAX
t ON
PWM mode
Skip mode
850
1000
94
85
70
1150
kHz
%
ns
ENABLE FUNCTIONALITY
EN Input High Threshold
EN Input Low Threshold
EN Input Leakage Current
V IH
V IL
V EN rising
V EN falling
0.4
-1
1.4
+1
V
V
F A
SKIP FUNCTIONALITY (Note 6)
SKIP Input High Threshold
SKIP Input Low Threshold
SKIP Pulldown Resistor
Minimum LX On-Current in Skip
Mode
Zero-Crossing LX Threshold
V SKIP rising
V SKIP falling
0.4
230
3
0.5
1.4
V
V
k I
A
A
SOFT-START AND PREBIAS FUNCTIONALITY
Soft-Start Current
SS/REFIN Discharge Resistance
I SS
R SS
V SS/REFIN = 0.45V, sourcing
I SS/REFIN = 10mA, sinking
6.8
10
7
12.5
F A
I
SS/REFIN Prebias Mode Stop
Voltage
SS/REFIN External Reference
Input Range
V SS/REFIN rising
0.58
V IN -
2.5
V
V
HICCUP MODE
Number of Consecutive Current-
Limit Events to Hiccup Mode
Hiccup Mode Timeout
N HIC
8
1024
Events
Clock
Cycles
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