參數(shù)資料
型號(hào): MAX1816ETM
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Replaced by TMS320VC5506 : Digital Signal Processors 144-LQFP
中文描述: DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CQCC48
封裝: 7 X 7 MM, 0.80 MM HEIGHT, THIN, QFN-48
文件頁數(shù): 4/49頁
文件大小: 983K
代理商: MAX1816ETM
M
Dual Step-Down Controllers Plus Linear-
Regulator Controller for Notebook Computers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
OUT1
= 1.20V, V
OUT2
= 2.50V, V
CC
= V
DD
= 5.0V, V
SKP1/
SDN
= V
SKP2/
SDN
= V
LIN/
SDN
= 5.0V,
T
A
= 0
°
C to +85
°
C
. Typical values are at T
A
= +25
°
C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
25
4
<1
MAX
40
10
5
UNITS
μA
μA
μA
Quiescent Battery Current
Shutdown Supply Current (V
CC
)
Shutdown Supply Current (V
DD
)
Measured at V+
V
SKP1/
SDN
= 0V, V
SKP2/
SDN
= 0V, and V
LIN/
SDN
= 0V
V
SKP1/
SDN
= 0V, V
SKP2/
SDN
= 0V, and V
LIN/
SDN
= 0V
V
SKP1/
SDN
= V
SKP2/
SDN
= 0V, measured at V+, with
V
CC
= V
DD
= 0V or 5V
V
CC
= 4.5V to 5.5V, I
REF
= 50μA sourcing
I
REF
= 0 to 50μA
I
REF
= 50μA to 100μA
REF in regulation
Voltage at OVPSET above which the OVP functions
are disabled for BUCK1 and BUCK2
Voltage at OVPSET below which the OVP thresholds
are set to their default values
Shutdown Battery Current
<1
5
μA
Reference Voltage
1.98
0
0
10
V
CC
-
1.5
2.00
2.02
7
7
V
CC
-
0.5
V
Reference Load Regulation
mV
Reference Sink Current
μA
OVPSET Disable Mode Threshold
V
OVPSET Default Mode Threshold
for BUCK1
0.4
0.6
V
MAX1816
MAX1994
MAX1816
MAX1994
MAX1816
MAX1994
1.95
2.20
0.95
1.075
1.95
2.20
2.00
2.25
1.00
1.125
2.00
2.25
2.05
2.30
1.05
1.175
2.05
2.30
Overvoltage Trip Threshold for
BUCK1 (Fixed OVP Threshold)
OVPSET = GND,
measured at FBS
V
V
OVPSET
= 1.0V,
measured at FBS
Overvoltage Trip Threshold for
BUCK1 (Adjustable Threshold)
V
OVPSET
= 2.0V,
measured at FBS
V
Overvoltage Trip Threshold for
BUCK2
OVPSET Bias Current
Overvoltage Fault Propagation
Delay
Output Undervoltage Protection
Threshold
Output Undervoltage Fault
Propagation Delay
Output Undervoltage Protection
Blanking Time for FBS
Output Undervoltage Protection
Blanking Time for OUT2
Linear Regulator (LINFB)
Undervoltage Protection Blanking
Time
Measured at OUT2 (or FB2 if external feedback is
used)
0V < V
OVPSET
< V
CC
FBS, OUT2, FB2, and LINFB forced 2% above the
no-load trip threshold
With respect to unloaded output voltage, FBS, and
OUT2 (FB2 in external feedback)
FBS, OUT2, FB2, and LINFB forced 2% below trip
threshold
From SKP1/
SDN
signal going high; clock speed set
by R
TIME
(Note 3)
From SKP2/
SHDN
signal going high; clock speed set
by R
TIME
(Note 3)
113
115
117
%
-100
+100
nA
10
μs
65
70
75
%
10
μs
256
Clks
4096
Clks
Linear regulator; from LIN/
SDN
signal going high;
clock speed set by R
TIME
(Note 3)
512
Clks
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