MAX17530 datasheet(4/19 Pages) MAXIM

Part #	MAX17530

Description	Reduces Power Dissipation

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Manufacturer	MAXIM [Maxim Integrated Products]

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Electrical Characteristics (continued)

(VIN = 24V, VGND = 0V, VOUT = 3.3V, VFB = 0.85V, VEN/UVLO = 1.5V, RT/SYNC = 191kΩ, LX = SS = MODE = RESET = unconnected;

TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C. All voltages are referenced to GND, unless

otherwise noted.) (Note 3)

Note 2: Actual IQ-PFM in the application circuit is higher due to additional current in the output voltage feedback resistor divider. For

example, IQ-PFM (MODE = unconnected) = 26µA for Figure 6, 22µA for Figure 7, and 78µA for Figure 11.

Note 3: Limits are 100% tested at TA = +25°C. Limits over the operating temperature range and relevant supply voltage range are

guaranteed by design and characterization.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RESET

FB Threshold for RESET Rising

VFB-OKR

VFB rising

93

95

97

%

FB Threshold for RESET Falling

VFB-OKF

VFB falling

90

92

94

%

RESET Delay after FB Reaches

95% Regulation

2.1

ms

RESET Output Level Low

IRESET = 1mA

0.23

V

RESET Output Leakage Current

Output Leakage Current

VFB = 1.01 x VFB-REG, TA = +25°C

1

µA

MODE

MODE PFM Threshold

VMODE-PFM

1

1.22

1.44

V

MODE Hysteresis

VMODE-HYS

0.19

V

MODE Internal Pullup Resistor

VMODE = unconnected

123

kΩ

VMODE = GND

1390

THERMAL SHUTDOWN

Thermal-Shutdown Threshold

VMODE-PFM

Temperature rising

160

°C

Thermal-Shutdown Hysteresis

VMODE-HYS

20

°C

MAX17530

42V, 25mA, Ultra-Small, High-Efficiency

Synchronous Step-Down DC-DC Converter

with 22µA No-Load Supply Current

www.maximintegrated.com

Maxim Integrated │ 4

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