MAX15062 Datasheet, PDF (2/23 Pages) Maxim Integrated Products – Step-Down DC-DC Converters

MAX15062
60V, 300mA, Ultra-Small, High-Efficiency,
Synchronous Step-Down DC-DC Converters
Absolute Maximum Ratings
V_IN to GND...............................................................-0.3V to 70V
EN/UVLO to GND....................................................-0.3V to 70V
LX to GND..................................................... -0.3V to V_IN + 0.3V
V_CC, FB/V_OUT, RESET to GND................................-0.3V to 6V
MODE to GND..............................................-0.3V to V_CC + 0.3V
LX total RMS Current......................................................±800mA
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (T_A = +70°C)
8-Pin TDFN (derate 6.2mW/NC above +70°C)............496mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Soldering Temperature (reflow)........................................+260°C
Lead Temperature (soldering, 10s).................................. +300°C
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.
Package Thermal Characteristics(Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (θ_JA).......+162°C/W
Junction-to-Case Thermal Resistance (θ_JC)..............+20°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(V_IN = 24V, V_GND = 0V, C_IN = C_VCC = 1µF, V_EN/UVLO = 1.5V, LX = MODE = RESET = unconnected; T_A = T_J = -40°C to +125°C, unless
otherwise noted. Typical values are at T_A = +25°C. All voltages are referenced to GND, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
INPUT SUPPLY (VIN)
Input Voltage Range
Input Shutdown Current
Input Supply Current
ENABLE/UVLO (EN/UVLO)
V_IN
I_IN-SH
I_Q-PFM
I_Q-PWM
V_EN/UVLO = 0V, shutdown mode
MODE = unconnected,
FB/V_OUT = 1.03 x FB/V_OUT-REG
Normal switching mode, V_IN = 24V
4.5
60
V
2.2
4
µA
95
160
µA
2.5
4
mA
V_ENR V_EN/UVLO rising
EN/UVLO Threshold
V_ENF V_EN/UVLO falling
V_EN-TRUESD V_EN/UVLO falling, true shutdown
EN/UVLO Input Leakage Current I_EN/UVLO V_EN/UVLO = 60V, T_A = +25°C
LDO (V_CC)
V_CC Output Voltage Range
V_CC 6V < V_IN < 60V, 0mA < I_VCC < 10mA
V_CC Current Limit
I_VCC-MAX V_CC = 4.3V, V_IN = 12V
V_CC Dropout
V_CC-DO V_IN = 4.5V, I_VCC = 5mA
V_CC UVLO
V_CC-UVR V_CC rising
V_CC-UVF V_CC falling
1.19 1.215 1.24
1.06 1.09 1.15
V
0.75
-100
+100
nA
4.75
5
5.25
V
13
30
50
mA
0.15 0.3
V
4.05 4.18 4.3
V
3.7
3.8 3.95
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