参数资料
型号: MAX17480EVKIT+
厂商: Maxim Integrated Products
文件页数: 8/48页
文件大小: 0K
描述: EVALUATION KIT FOR MAX17480
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 3,非隔离
输入电压: 4 ~ 26 V
稳压器拓扑结构: 降压
板类型: 完全填充
已供物品:
已用 IC / 零件: MAX17480
AMD 2-/3-Output Mobile Serial
VID Controller
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 2, V IN = 12V, V CC = V DD = V IN3 = SHDN = PGD_IN = 5V, V DDIO = 1.8V, OPTION = GNDS_ = AGND = PGND,
FBDC_ = FBAC_ = OUT3 = CSP_ = CSN_ = 1.2V, all DAC codes set to the 1.2V code, T A = -40°C to +105°C , unless otherwise
noted. Typical values are at T A = +25 ° C.) (Note 5)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SMPS1 AND SMPS2 CONTROLLERS
GNDS_ Input Range
V GNDS_
Separate mode
-200
+200
mV
Separate: V OUT _/ V GNDS _ , -200mV
GNDS_ Gain
A GNDS_
V GNDS _
+200mV ; combined;
0.95
1.05
V/V
V OUT / V GNDS_, -200mV V GNDS_ +200mV
Combined-Mode Detection
Threshold
GNDS1, GNDS2, detection after REFOK,
latched, cleared by cycling SHDN
0.7
0.9
V
Maximum Duty Factor
Minimum On-Time
D MAX
t ONMIN
90
150
%
ns
SMPS1 AND SMPS2 CURRENT LIMIT
Current-Limit Threshold
Tolerance
Idle-Mode Threshold Tolerance
CS_ Common-Mode Input Range
V LIMIT
V IMIN
V CSP _ - V CSN _ = 0.052 x (V REF - V ILIM ),
(V REF - V ILM ) = 0.2V to 1.0V
V CSP _ - V CSN _, skip mode, 0.15 x V LIMIT
CSP_ and CSN_
-3
-2
0
+3
+2
2
mV
mV
V
SMPS1 AND SMPS2 DROOP, CURRENT BALANCE, AND TRANSIENT RESPONSE
AC Droop and Current Balance
Amplifier Transconductance
AC Droop and Current Balance
Amplifier Offset
G m(FBAC _ )
I FBAC _/( V CS _), V FBAC _ = V CSN _ = 1.2V,
V CSP _ - V CSN _ = 0 to +40mV
I FBAC _/G m(FBAC _ )
1.94
-1.5
2.06
+2.0
mS
mV
Measured at FBDC_ with respect to
Transient Detection Threshold
steady-state FBDC_ regulation voltage,
-47
-33
mV
10mV hysteresis (typ)
SMPS3 INTERNAL 4A STEP-DOWN CONVERTER
OUT3 Load Regulation
Internal MOSFET On-Resistance
R DROOP3
R ON(NH3)
R ON(NL3)
High-side n-channel
Low-side n-channel
4
7
150
75
mV/A
m
LX3 Peak Current Limit
I LX3PK
ILIM3 = V CC, skip mode
4.75
6
A
Maximum Duty Factor
Minimum On-Time
D MAX
t ONMIN
84
150
%
ns
8
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