MAX15002 Datasheet, PDF (2/30 Pages) Maxim Integrated Products – Dual-Output Buck Controller with Tracking/Sequencing

Dual-Output Buck Controller with
Tracking/Sequencing
ABSOLUTE MAXIMUM RATINGS
IN, LX_, CSN_ to SGND..........................................-0.3V to +30V
BST_ to SGND ........................................................-0.3V to +30V
BST_ to LX_ ..............................................................-0.3V to +6V
REG, DREG_, SYNC, EN_, RT, CT,
RESET, PHASE, SEL to SGND ...............................-0.3V to +6V
ILIM_, PGOOD_, FB_, COMP_, CSP_ to SGND .......-0.3V to +6V
DL_ to PGND_.......................................-0.3V to (V_{DREG_} + 0.3V)
DH_ to LX_ ...............................................-0.3V to (V_{BST_} + 0.3V)
PGND_ to SGND, PGND_ to Any Other PGND_.......-0.3V to +0.3V
Continuous Power Dissipation (T_A = +70°C)
40-Pin TQFN (derate 37mW/°C above +70°C) .............2963mW*
θ_JA ..................................................................................27°C/W
θ_Jc .................................................................................1.4°C/W
Operating Junction Temperature Range ...........-40^oC to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
*As per JEDEC51 standard (multilayer board).
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V_IN = 5.5V to 23V or V_IN = V_REG = 4.5V to 5.5V, V_{DREG_} = V_REG, V_{PGND_} = V_SYNC = V_PHASE = V_SEL = 0V, C_REG = 2.2µF, R_RT = 100kΩ,
C_CT = 0.1µF, R_{ILIM_} = 60kΩ, T_A = T_J = -40°C to +125°C, unless otherwise noted. Typical values are at V_IN = 12V, T_A = T_J = +25°C.)
(Note 1)
PARAMETER
SYSTEM SPECIFICATIONS
Input-Voltage Range
Input Undervoltage Lockout
Threshold
SYMBOL
CONDITIONS
V_IN
V_UVLO
V_IN = V_REG = V_DREG (Note 2)
V_IN rising
MIN TYP MAX UNITS
5.5
23.0
V
4.5
5.5
V
3.95 4.05 4.15
V
Input Undervoltage Lockout
Hysteresis
0.35
V
Operating Supply Current
Shutdown Supply Current
REG VOLTAGE REGULATOR
V_IN = 12V, V_{FB_} = 0.8V
V_IN = 12V, EN_ = 0V, PGOOD_ unconnected
Output-Voltage Setpoint
V_REG
Load Regulation
DIGITAL SOFT-START/SOFT-STOP
V_IN = 5.5V to 23V
I_REG = 0 to 120mA, V_IN = 12V
Soft-Start/Soft-Stop Duration
Reference Voltage Steps
ERROR TRANSCONDUCTANCE AMPLIFIER
FB_, TRACK_ Input Bias Current
FB_ Voltage Setpoint
V_FB
T_A = T_J = 0°C to +85°C
T_A = T_J = -40°C to +125°C
FB_ to COMP_
Transconductance
COMP_ Output Swing
Open-Loop Gain
Unity-Gain Bandwidth
4.9
-250
0.593
0.590
0.75
4.3
150
2048
64
0.600
0.600
2.1
80
10
6.0
300
5.2
0.2
+250
0.605
0.608
3.50
mA
µA
V
V
Clocks
Steps
nA
V
V
mS
V
dB
MHz
2 _______________________________________________________________________________________