Rainbow Electronics MAX15034 - Manual (Page 4)

MAX15034
Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
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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 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
-3dB Bandwidth f -3dB 4 MHz
V CSP_ = 5.5V, sinking 120
CSP_ Input Bias Current I
CSA(IN)
V CSP_ = 0V, sourcing 30
μA
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
C LM P_H I (E A)
With respect to V CM 1 V
Error-Amplifier Output Clamping
Low Voltage
V
C LM P_LO ( EA ) With respect to V CM -0.234 V
EN_ INPUTS
EN_ Input High Voltage V ENH EN rising 1.2 1.222 1.245
EN_ Hysteresis 0.05
V
EN_ Input Leakage Current I EN -200 +200 nA
Startup Delay Time to OUT_ t
START_DELAY
From EN_ rising to V OUT_ rising 1 ms
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 5 μA
PREBIASED OUTPUT
Peak Sink Current-Limit
Threshold during Reference
Soft-Start
V CSP_ - V CSN_ -2.1 mV
Digital Ramp Period for
Stepping Peak Sink Current
Limit after Reference Soft-Start
448
Clock
cycles
THERMAL SHUTDOWN
Thermal Shutdown T
SHDN
160
Thermal Shutdown Hysteresis T HYST 10
°C
Note 2: The device is 100% production tested at T A = T J = +125°C. Limits at T A = -40°C and T A = +25°C are guaranteed by design.
Note 3: 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.