Datasheet

MAX5066
Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
REG
= V
DD
= V
EN_
= +5V, T
A
= T
J
= T
MIN
to T
MAX
, unless otherwise noted, circuit of Figure 6. Typical values are at T
A
= +25°C.)
(Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CURRENT-ERROR AMPLIFIER (CEA_)
Transconductance g
M
550 µS
Open-Loop Gain
A
VOL
(
CEA
)
No load 50 dB
VOLTAGE ERROR AMPLIFIER (EAOUT_)
Open-Loop Gain
A
VOL
(
EA
)
70 dB
Unity-Gain Bandwidth f
UGEA
3
MHz
EAN_ Input Bias Current
I
BIAS
(
EA
)
V
EAN_
= 2.0V 100 nA
Error Amplifier Output Clamping
High Voltage
V
CLMP_HI
(EA)
With respect to V
CM
1.14 V
Error Amplifier Output Clamping
Low Voltage
V
CLMP_LO
(EA)
With respect to V
CM
-0.234
V
EN_ INPUTS
EN_ Input High Voltage V
ENH
EN rising
1.204 1.222 1.240
EN_ Hysteresis 0.05
V
EN_ Input Leakage Current I
EN
-1 +1 µA
MODE INPUT
MODE Logic-High Threshold
V
MODE_H
2.4 V
MODE Logic-Low Threshold
V
MODE_L
0.8 V
MODE Input Pulldown
I
PULLDWN
5µA
THERMAL SHUTDOWN
Thermal Shutdown T
SHDN
160
Thermal Shutdown Hysteresis T
HYST
10
°C
Note 1: The device is 100% production tested at T
A
= +85°C (MAX5066EUI) and T
A
= T
J
= +125°C (MAX5066AUI). Limits at -40°C
and +25°C are guaranteed by design.
Note 2: The internal reference voltage accuracy is measured at the negative input of the error amplifiers (EAN_). Output voltage
accuracy must include external resistor-divider tolerances.