参数资料
型号: MAX1717EEG+
厂商: Maxim Integrated Products
文件页数: 2/33页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 24-QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1MHz
占空比: 100%
电源电压: 4.5 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
包装: 管件
Dynamically Adjustable, Synchronous
Step-Down Controller for Notebook CPUs
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +30V
V CC , V DD to GND .....................................................-0.3V to +6V
D0–D4, A/ B, VGATE, to GND ..................................-0.3V to +6V
SKP/ SDN to GND ...................................................-0.3V to +16V
ILIM, FB, FBS, CC, REF, GNDS, TON,
TIME to GND ..........................................-0.3V to (V CC + 0.3V)
DL to GND ..................................................-0.3V to (V DD + 0.3V)
BST to GND ............................................................-0.3V to +36V
LX to BST..................................................................-6V to +0.3V
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation
24-Pin QSOP (derate 9.5mW/°C above +70°C)..........762mW
Operating Temperature Range ..........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature.........................................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
DH to LX .....................................................-0.3V to (BST + 0.3V)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = +15V, V CC = V DD = SKP/ SDN = +5V, V OUT = 1.6V, T A = 0°C to +85°C , unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PWM CONTROLLER
Input Voltage Range
Battery voltage, V+
V CC , V DD
2
4.5
28
5.5
V
DC Output Voltage Accuracy
(Note 1)
V+ = 4.5V to 28V,
includes load
regulation error
DAC codes from 1.3V to 2V
DAC codes from 0.925V to 1.275V
-1
-1.2
1
1.2
%
%
Remote Sense Voltage Error
Line Regulation Error
FB to FBS or GNDS to GND = 0 to 25mV
V CC = 4.5V to 5.5V, V BATT = 4.5V to 28V
3
5
mV
mV
FB Input Resistance
FBS Input Bias Current
GNDS Input Bias Current
150kHz nominal, R TIME = 120k Ω
115
-0.2
-1
-8
180
265
0.2
1
+8
k Ω
μA
μA
TIME Frequency Accuracy
380kHz nominal, R TIME = 47k Ω
38kHz nominal, R TIME = 470k Ω
V+ = 5V, FB = 2V, TON = GND (1000kHz)
-12
-12
375
425
+12
+12
475
%
On-Time (Note 2)
V+ = 24V, FB = 2V
TON = REF (550kHz)
TON = open (300kHz)
135
260
155
289
173
318
ns
TON = V CC (200kHz)
375
418
461
Minimum Off-Time (Note 2)
Minimum Off-Time (Note 2)
TON = V CC , open, or REF (200kHz, 300kHz, or 550kHz)
TON = GND (1000kHz)
400
300
500
375
ns
ns
BIAS AND REFERENCE
Quiescent Supply Current (V CC )
Quiescent Supply Current (V DD )
Quiescent Battery Supply
Current (V+)
Shutdown Supply Current (V CC )
Shutdown Supply Current (V DD )
Shutdown Battery Supply
Current (V+)
Measured at V CC , FB forced above the regulation point
Measured at V DD , FB forced above the regulation point
SKP/ SDN = 0
SKP/ SDN = 0
SKP/ SDN = 0, V CC = V DD = 0 or 5V
700
<1
25
2
<1
<1
1200
5
40
5
5
5
μA
μA
μA
μA
μA
μA
Reference Voltage
V CC = 4.5V to 5.5V, no REF load
1.98
2
2.02
V
2
_______________________________________________________________________________________
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