MAX1636EAP Datasheet Download

Part No.:
MAX1636EAP
Download:
Download Datasheet
Description:
[Low-Voltage, Precision Step-Down Controller for Portable CPU Power]
File Size:
220 K
Page:
24 Pages
Logo:
Manufacturer:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype
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Low-Voltage, Precision Step-Down
Controller for Portable CPU Power
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, SYNC = VL = V
CC
, I
VL
= 0mA, I
REF
= 0mA,
T
A
= 0°C to +85°C,
unless otherwise noted. Typical values
are at T
A
= +25°C.)
PARAMETER
INTERNAL VL REGULATOR AND REFERENCE
V
CC
= 5V, I(VL) = 0
Regulator Supply Current (V+)
Standby Supply Current (V+)
VL Output Voltage
VL Undervoltage Lockout Threshold
VL/ V
CC
Switchover Threshold
REF Output Voltage
REF Load Regulation
REF Line Regulation
OSCILLATOR
Oscillator Frequency
Maximum Duty Factor
Maximum Duty Factor, Dropout Mode
SYNC Input Pulse Width High
SYNC Input Pulse Width Low
SYNC Input Rise/Fall Time
SYNC Input Frequency Range
OVERVOLTAGE PROTECTION
Overvoltage Trip Threshold
Overvoltage Fault Propagation Delay
Thermal Shutdown Threshold
Catastrophic Output Undervoltage
Lockout Threshold
Catastrophic Output Undervoltage
Lockout Delay
RESET
Trip Threshold
RESET
Delay Time
INPUTS AND OUTPUTS
Logic Input Voltage High
Logic Input Voltage Low
Logic Input Bias Current
SHDN
Input Bias Current
RESET
Output Voltage Low
RESET
Output Leakage Current
SHDN, SKIP,
OVP, SYNC
SHDN, SKIP,
OVP, SYNC
Pin at GND or V
CC
;
SKIP,
OVP, SYNC
SHDN
= GND or V+
I
SINK
= 4mA
+5.5V stress voltage applied
-1
-3
2.4
0.8
1
3
0.4
V
V
µA
µA
V
µA
FB, with respect to regulation point
FB to DL delay, 22mV overdrive, C
GATE
= 2000pF
Hysteresis = 10°C
% of nominal output
From shutdown or power-on-reset state
Falling edge (hysteresis = 1%)
-6
32768
60
4
7
1.25
150
70
6144
-3
80
10
%
µs
°C
%
clks
%
clks
Guaranteed by design
240
SYNC = V
CC
SYNC = GND
SYNC = V
CC
SYNC = GND
SYNC = GND
270
170
91
93
98
200
200
200
340
300
200
94
96
99
330
230
kHz
%
%
ns
ns
ns
kHz
V
CC
= 5V, I(VL) = 0, V+ = 4.5V
(includes PNP base current)
SHDN
= GND, OVP = V
CC
I(VL) = 0 to 25mA, 5V < V+ < 30V
I(VL) = 0 to 25mA, 6V < V+ < 30V
Rising edge, hysteresis = 25mV
Rising edge, hysteresis = 25mV
No REF load
REF load = 0 to 50µA
V
CC
= 3.3V to 5.5V
1.090
4.5
4.7
3.45
5.0
5.0
3.60
3.15
1.100
1.110
10
3
60
500
60
5.3
5.3
3.75
µA
µA
V
V
V
V
mV
mV
CONDITIONS
MIN
TYP
MAX
UNITS
MAX1636
1
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