Datasheet

MAX15036/MAX15037
2.2MHz, 3A Buck or Boost Converters
with an Integrated High-Side Switch
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V+ = V
L
= 5V or V+ = 5.5V to 23V, V
EN
= 5V, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Circuits of Figures 5 and 6. Typical
values are at T
A
= T
J
= +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SYNC Frequency Range (Note 5) 200 2200 kHz
SYNC Input to SOURCE Rising-
Edge Phase Delay
SYNC
PHASE
R
OSC
= 10kΩ, f
SYNC
= 1.2MHz
(Note 6)
65 Degrees
SYNC High Threshold V
SYNCH
2.0 V
SYNC Low Threshold V
SYNCL
0.8 V
SYNC Input Bias Current I
SYNC
250 nA
Minimum SYNC High Pulse Width t
SYNC_H
100 ns
EN, RESET (MAX15036)/PGOOD (MAX15037)
V
IH
2.0
EN Threshold
V
IL
0.8
V
EN Input Bias Current I
EN
250 nA
RESET Threshold V
TH
V
FB
= V
OUT
(Note 7) 90 92.5 95 % V
OUT
PGOOD Threshold V
TH
V
FB
= V
OUT
(Note 7) 90 92.5 95 % V
OUT
FB to RESET or FB to PGOOD
Propagation Delay
t
FD
3μs
RESET Active Timeout Period t
RP
140 200 254
ms
RESET, PGOOD Output Voltage
Low
V
OL
I
SINK
= 3mA 0.4 V
RESET, PGOOD Output Leakage
Current
I
LEAK
V+ = V
L
= 5.2V, V
R ESET
or
V
PGOOD
= 6V, V
FB
= 0.8V
2μA
THERMAL SHUTDOWN
Thermal Shutdown T
SHDN
Temperature rising +170 °C
Thermal-Shutdown Hysteresis 25 °C
Note 2: 100% tested at T
A
= +25°C and T
A
= +125°C. Limits from T
A
= -40°C to +25°C are guaranteed by design.
Note 3: Output current may be limited by the power dissipation of the package. See the
Power Dissipation section in the Applications
Information
section.
Note 4: From the rising edge of the SOURCE waveform to the rising edge of the CKO waveform.
Note 5: SYNC input frequency is equal to the switching frequency.
Note 6: From the SYNC rising edge to SOURCE rising edge.
Note 7: RESET goes high 200ms after V
OUT
crosses this threshold, PGOOD goes high after V
OUT
crosses this threshold.