参数资料
型号: MAX15017BATX+T
厂商: Maxim Integrated
文件页数: 4/26页
文件大小: 0K
描述: IC REG DL BCK/LINEAR 36TQFNEP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
拓扑: 降压(降压)同步(1),线性(LDO)(1)
功能: 车载
输出数: 2
频率 - 开关: 500kHz
电压/电流 - 输出 1: 1.26 V ~ 32 V,1A
电压/电流 - 输出 2: 5 V ~ 40 V,50mA
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 7.5 V ~ 40 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 36-WFQFN 裸露焊盘
供应商设备封装: 36-TQFN 裸露焊盘(6x6)
包装: 带卷 (TR)
1A, 4.5V to 40V Input Buck Converters with
50mA Auxiliary LDO Regulators
ELECTRICAL CHARACTERISTICS (continued)
(V IN_SW = V IN_LDO = V DRAIN = 14V, V EN_SYS = V EN_SW = 2.4V, V REG = V DVREG , V SYNC = V SET_LDO = V SGND = V PGND = 0V, C REG =
1μF, C IN_SW = 0.1μF, C IN_LDO = 0.1μF, C LDO_OUT = 10μF, C DRAIN = 0.22μF, T A = T J = -40°C to +125°C, unless otherwise noted.
Typical values are at T A = +25°C.) (Note 1)
PARAMETER
SYNC Frequency Range
SYMBOL
f SYNC
CONDITIONS
MAX15014/MAX15016
MAX15015/MAX15017
MIN
100
400
TYP
MAX
200
600
UNITS
kHz
Ramp Level Shift (Valley)
ERROR AMPLIFER
0.3
V
Soft-Start Reference Voltage
V SS
1.210
1.235
1.260
V
Soft-Start Current
FB Regulation Voltage
FB Input Range
FB Input Current
COMP Voltage Range
I SS
V FB
V FB
I FB
V SS = 0V
V FB = 1.244V
I COMP = -500μA to +500μA
7
1.210
0
-250
0.25
12
1.235
17
1.260
1.5
+250
4.5
μA
V
V
nA
V
Open-Loop Gain
Unity-Gain Bandwidth
80
1.8
dB
MHz
PWM Modulator Gain
f SYNC = 500kHz, MAX15015/MAX15017
f SYNC = 135kHz, MAX15014/MAX15016
10
10
V/V
CURRENT-LIMIT COMPARATOR
Pulse Skip Threshold
Cycle-by-Cycle Current Limit
IPFM
I ILIM
100
1.3
200
2
300
2.6
mA
A
Number of Consecutive ILIM
Events to Hiccup
Hiccup Timeout
POWER SWITCH
7
512
Clock
periods
Switch On-Resistance
V BST - V LX = 6V
0.15
0.4
0.80
?
Switch Gate Charge
Switch Leakage Current
V BST - V LX = 6V
V IN_SW = V IN_LDO = V LX = V DRAIN =
40V, V FB = 0V
4
10
nC
μA
BST Quiescent Current
BST Leakage Current
V BST = 40V, V DRAIN = 40V, V FB = 0V,
DVREG = 5V
V BST = V DRAIN = V LX = V IN_SW =
V IN_LDO = 40V, EN_SW = 0V
400
600
1
μA
μA
CHARGE PUMP (MAX15015/MAX15016)
C- Output Voltage Low
C- Output Voltage High
DVREG to C+ On-Resistance
LX to PGND On-Resistance
Sinking 10mA
Relative to DVREG, sourcing 10mA
Sourcing 10mA
Sinking 10mA
0.1
0.1
10
12
V
V
?
?
LDO
Input Voltage Range
V IN_LDO
5
40
V
Undervoltage Lockout Threshold
UVLO_LDO TH
V IN_LDO rising
3.90
4.1
4.25
V
Undervoltage Lockout Hysteresis
UVLO_LDO HYST
0.3
V
4
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