参数资料
型号: MAX1717BEEG+T
厂商: Maxim Integrated Products
文件页数: 4/33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: 2,500
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: 带卷 (TR)
Dynamically Adjustable, Synchronous
Step-Down Controller for Notebook CPUs
ELECTRICAL CHARACTERISTICS (continued)
(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
DL Gate-Driver Source Current
Dead Time
DL forced to 2.5V
DL rising
DH rising
CONDITIONS
MIN
TYP
1.3
35
26
MAX
UNITS
A
ns
LOGIC AND I/O
Logic Input High Voltage
Logic Input Low Voltage
DAC B-Mode Programming
Resistor, Low
D0–D4, A/ B
D0–D4, A/ B
D0–D4, 0 to 0.4V or 2.6V to 5.5V applied through resistor,
A/ B = GND
2.4
0.8
1.05
DAC B-Mode Programming
Resistor, High
D0–D4, 0 to 0.4V or 2.6V to 5.5V applied through resistor,
A/ B = GND
95
k Ω
D0–D4 Pullup/Pulldown
Logic Input Current
Entering B mode
D0–D4, A/ B = 5V
A/ B
Pull up
Pull down
-1
-1
40
8
1
1
k Ω
μA
For TON = V CC (200kHz operation)
V CC - 0.4
TON Input Levels
For TON = open (300kHz operation)
For TON = REF (550kHz operation)
3.15
1.65
3.85
2.35
V
For TON = GND (1000kHz operation)
0.5
SKP/ SDN and TON Input Current
SKP/ SDN Input Levels
SKP/ SDN , TON forced to GND or V CC
SKP/ SDN = logic high (SKIP mode)
SKP/ SDN = open (PWM mode)
SKP/ SDN = logic low (shutdown mode)
To enable no-fault mode
-3
2.8
1.8
12
3
6
2.2
0.5
15
μA
V
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = +15V, V CC = V DD = SKP/ SDN = +5V, V OUT = 1.6V, T A = -40°C to +85°C , unless otherwise noted.) (Note 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
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
-1.5
-1.7
1.5
1.7
%
150kHz nominal, R TIME = 120k Ω
-8
+8
TIME Frequency Accuracy
On-Time (Note 2)
380kHz nominal, R TIME = 47k Ω
38kHz nominal, R TIME = 470k Ω
V+ = 5V, FB = 2V, TON = GND (1000kHz)
TON = REF (550kHz)
-12
-12
375
136
+12
+12
475
173
%
ns
On-Time (Note 2)
V+ = 24V, FB = 2V
TON = open (300kHz)
260
318
ns
TON = V CC (200kHz)
365
471
Minimum Off-Time (Note 2)
Minimum Off-Time (Note 2)
TON = V CC , open, or REF (200kHz, 300kHz, or 550kHz)
TON = GND (1000kHz)
500
375
ns
ns
4
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