參數(shù)資料
型號: MAX1717EEG
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP
中文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO24
封裝: 0.150 INCH, 0.025 INCH PITCH, MO-137AC, QSOP-24
文件頁數(shù): 4/32頁
文件大?。?/td> 501K
代理商: MAX1717EEG
M
Dynamically Adjustable, Synchronous
Step-Down Controller for Notebook CPUs
4
_______________________________________________________________________________________
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
CONDITIONS
DL forced to 2.5V
DL Gate-Driver Source Current
DL rising
Dead Time
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
On-Time (Note 2)
375
136
260
365
475
173
318
471
500
375
ns
On-Time (Note 2)
ns
Minimum Off-Time (Note 2)
Minimum Off-Time (Note 2)
ns
ns
TON = REF (550kHz)
TON = open (300kHz)
TON = V
CC
(200kHz)
V+ = 5V, FB = 2V, TON = GND (1000kHz)
V+ = 24V, FB = 2V
TON = V
CC
, open, or REF (200kHz, 300kHz, or 550kHz)
TON = GND (1000kHz)
TIME Frequency Accuracy
-8
-12
-12
+8
+12
+12
%
150kHz nominal, R
TIME
= 120k
380kHz nominal, R
TIME
= 47k
38kHz nominal, R
TIME
= 470k
-1.7
1.7
DC Output Voltage Accuracy
(Note 1)
-1.5
1.5
%
DAC codes from 1.3V to 2V
V+ = 4.5V to 28V,
includes load
regulation error
DAC codes from 0.925V to 1.275V
MIN
TYP
1.3
35
MAX
UNITS
A
D0–D4 Pull Up/Down
Entering B mode
Pull up
Pull down
40
8
k
μA
-1
-1
1
1
D0–D4, A/
B
= 5V
A/
B
For TON = V
CC
(200kHz operation)
For TON = open (300kHz operation)
For TON = REF (550kHz operation)
For TON = GND (1000kHz operation)
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
Logic Input Current
TON Input Levels
V
CC
- 0.4
3.15
1.65
3.85
2.35
0.5
3
6
V
μA
-3
2.8
SKP/
SDN
and TON Input Current
SKP/
SDN
Input Levels
V
12
15
0.5
1.8
2.2
k
95
D0–D4, 0 to 0.4V or 2.6V to 5.5V applied through resistor,
A/
B
= GND
DAC B-Mode Programming
Resistor, High
1.05
D0–D4, 0 to 0.4V or 2.6V to 5.5V applied through resistor,
A/
B
= GND
DAC B-Mode Programming
Resistor, Low
D0–D4, A/
B
Logic Input Low Voltage
2.4
D0–D4, A/
B
Logic Input High Voltage
26
DH rising
ns
LOGIC AND I/O
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