SC410AEVB datasheet(3/26 Pages) SEMTECH

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SC410A

Absolute Maximum Ratings

LX to GND (V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +28

VIN to PGND, EN to AGND (V). . . . . . . . . . . . . . . . . -0.3 to +28

VIN to LDO (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0 . 3

BST to LX (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0

BST to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +34

LDO to AGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3to+6.0

FB, PGOOD, TON (V). . . . . . . . . . . . . . . . . . . . -0.3 to LDO +0.3

AGND to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3

Maximum Peak Inductor Current (A) . . . . . . . . . . . . . . . . . 5.5

Peak IR Reflow Temperature (°C ). . . . . . . . . . . . . . . . . . . . . 260

ESD Protection Level (kV)(1) . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5

Recommended Operating Conditions

Supply Input Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . 7 to 24

Maximum Continuous Output Current (A) . . . . . . . . . . . . . 2

Maximum Peak Inductor Current (A) . . . . . . . . . . . . . . . . . 5.0

Thermal Information

Storage Temperature (°C ) . . . . . . . . . . . . . . . . . . -60 to +150

Maximum Junction Temperature (°C ). . . . . . . . . . . . . . . . 150

Operating Junction Temperature (°C ). . . . . . . -40 to +125

Thermal Resistance, Junction to Ambient(2) (°C/W ) . . . . 40

Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters

specified in the Electrical Characteristics section is not recommended.

NOTES:

(1) Tested according to JEDEC standard JESD22-A114-B.

(2) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.

Electrical Characteristics

Unless specified: V

IN =12V, TA=+25°C for Typ, -40°C to +85°C for Min and Max, TJ < 125°C, per detailed application circuit

Parameter

Conditions

Min

Typ

Max

Units

Input Supplies

Internal Bias UVLO Threshold

Rising UVLO V

Internal Bias UVLO Hysteresis

0.3

VIN Supply Current

EN = 0V

225

μA

OUT= 0A

(1)

0.8

Controller

FB On-Time Threshold

0.7425

0.75

0.7575

Frequency Programming Range

See R

TON Calculation

200

1000

kHz

FB Input Bias Current

FB=5V or 0V

-1

μA

Timing

On-Time

Continuous Mode V

IN=15V, VOUT=3V, RTON= 200kΩ

0.9

1.1

μs

Minimum On-Time(1)

100

Minimum Off-Time(1)

320

Auto-recovery Interval

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