参数资料
型号: MAX15112EVKIT#
厂商: Maxim Integrated Products
文件页数: 10/23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
Pin Configuration
TOP VIEW
(BUMP ON THE BOTTOM)
MAX15112
+
GND
A1
GND
B1
GND
C1
GND
D1
LX
A2
LX
B2
LX
C2
GND
D2
LX
A3
LX
B3
LX
C3
AIN
D3
BST
A4
IN
B4
IN
C4
IN
D4
PGOOD
A5
N.C.
B5
SKIP
C5
EN
D5
GSNS
A6
FB
B6
SS/REFIN
C6
COMP
D6
WLP
Pin Description
PIN
A1, B1, C1,
D1, D2
A2, A3, B2,
B3, C2, C3
A4
A5
A6
B4, C4, D4
B5
B6
C5
C6
D3
D5
D6
NAME
GND
LX
BST
PGOOD
GSNS
IN
N.C
FB
SKIP
SS/REFIN
AIN
EN
COMP
FUNCTION
Ground Connection. GND is the source terminal of the internal low-side switch. Connect all GND
bumps to a component-side PCB copper ground plane at a single point near the input bypass
capacitor return terminal.
Inductor Connection. Connect LX to the switching side of the inductor. LX is high impedance when
the MAX15112 is in shutdown mode.
Boost Input for the High-Side Switch Driver. Connect a capacitor from BST to LX.
Power-Good Open-Drain Output. PGOOD asserts high when V FB is above 0.554V (typ) and
deasserts when V FB falls below 0.529V (typ).
Remote Ground-Sense Input. Connect GSNS to the ground terminal of the load and to the bottom of
the feedback resistors.
Input Power Supply. Bypass IN to GND with at least two 22 F F low-ESR ceramic capacitors with suf-
ficient ripple current ratings.
No Connection. Do not connect.
Feedback Input. Connect FB to the center tap of an external resistor divider from the output to the
output capacitor return terminal to set the output voltage from 0.6V to 0.94 x V IN .
Skip-Mode Selector Input. Connect SKIP to EN for skip-mode operation. Connect SKIP to GND or leave
unconnected for continuous mode operation. Do not change the state of SKIP when EN is high.
Soft-Start and External Voltage Reference Input. Connect a capacitor from SS/REFIN to GND to set
the soft-start delay. See the Setting the Soft-Start Time section for more information. To use SS/REFIN
as an external voltage reference, apply a voltage ranging from 0V to (V IN - 2.5V) to SS/REFIN to
externally control the soft-start time and feedback voltage.
Filtered Input Voltage
Enable Input. Drive EN high to enable the MAX15112. Connect EN to IN for always-on operation.
Error Amplifier Output. Connect the compensation network from COMP to GND. See the
Compensation Design Guidelines section for more information.
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