参数资料
型号: MAX15046BAEE+T
厂商: Maxim Integrated Products
文件页数: 3/24页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 16-QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.1MHz
占空比: 87.5%
电源电压: 4.5 V ~ 40 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 16-LSSOP(0.154",3.90mm 宽)裸露焊盘
包装: 带卷 (TR)
MAX15046
40V, High-Performance, Synchronous
Buck Controller
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 24V, V EN = 5V, V GND = V PGND = 0V, C IN = 1 F F, C VCC = 4.7 F F, R RT = 49.9k I , T A = T J = -40 N C to +125 N C, unless otherwise
noted. Typical values are at T A = +25 N C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V COMP-RAMP Minimum Voltage
200
mV
COMP Source/Sink Current
I COMP
V COMP = 1.4V
50
80
110
F A
ENABLE (EN)
EN Input High
EN Input Low
EN Input Leakage Current
V EN_H
V EN_L
I EN
V EN rising
V EN falling
V EN = 5.5V
1.14
-1
1.20
1.05
1.26
+1
V
V
F A
OSCILLATOR
Switching Frequency (100kHz)
Switching Frequency (300kHz)
Switching Frequency (1MHz)
Switching Frequency Adjustment
Range
RT Voltage
f SW
f SW
f SW
V RT
R RT = 150k I
R RT = 49.9k I
R RT = 14.3k I
(Note 3)
R RT = 49.9k I
80
270
0.9
100
1.15
100
300
1
1.2
120
330
1.1
1000
1.25
kHz
kHz
MHz
kHz
V
PWM MODULATOR
PWM Ramp Peak-to-Peak
Amplitude
V RAMP
1.5
V
PWM Ramp Valley
Minimum Controllable On-Time
V VALLEY
MAX15046A/B
MAX15046C
1.5
0.75
70
125
V
ns
Maximum Duty Cycle D MAX
Minimum Low-Side On-Time
OUTPUT DRIVERS/DRIVERS SUPPLY (V DRV )
f SW = 300kHz
(R RT = 49.9k I )
f SW = 1MHz
(R RT = 14.3k I )
MAX15046A/B
MAX15046C
MAX15046A/B
MAX15046C
85
90
87.5
93
110
90
%
ns
Undervoltage Lockout
V DRV_UVLO
V DRV rising
4.0
4.2
4.4
V
DRV Undervoltage Lockout
Hysteresis
400
mV
DH On-Resistance
DL On-Resistance
Low, sinking 100mA,
V BST - V LX = 5V
High, sourcing 100mA,
V BST - V LX = 5V
Low, sinking 100mA,
V DRV = V CC = 5.25V
High, sourcing 100mA,
V DRV = V CC = 5.25V
1
1.5
1
1.5
3
4
3
4
I
DH Peak Current
C LOAD = 10nF
Sinking,
V BST - V LX = 5V
Sourcing,
V BST - V LX = 5V
3
2
A
Maxim Integrated
3
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