SC183CQ

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3

Electrical Characteristics

Exceeding the absolute maximum ratings may result in permanent damage to the device and/or device malfunction. Operation outside of the

parameters specified in the Electrical Characteristics section is not recommended.

NOTES:

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

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

Recommended Operating Conditions

Supply Voltage PVIN and AVIN …………………… 2.9 to 5.5V

Maximum Output Current

………………………………… 2.0A

Input Capacitor ………………………………………… 10uF

Output Capacitor ……………………………………… 22uF

Output Inductor ……………………………………… 2.2uH

Thermal Resistance, Junction to Ambient(1) ………… 40 °C/W

Maximum Junction Temperature …………………… +150 °C

Storage Temperature Range ………………… -65 to +150 °C

Thermal Information

Unless specified: PVIN= AVIN= 5.0V, VOUT= 1.50V, C

IN= 10µF, COUT= 22µF, L= 2.2µH, -40°C≤ TJ≤ +125 °C. Unless otherwise noted typical values are

T

A= +25 °C.

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Under-Voltage Lockout

UVLO

Rising AVIN, PVIN=AVIN

2.70

2.80

2.90

V

Hysteresis

240

300

mV

Output Voltage Tolerance(1)

ΔV

OUT

PVIN= AVIN= 2.9 to 5.5V; I

OUT=0A

-2.0

+2.0

%

Current Limit

I

LIMIT

Peak LX current

2.5

3.0

3.75

A

Supply Current

I

Q

No load

10

mA

Shutdown Current

I

SHDN

CTL

0-3= AGND

1

10

µA

High Side Switch Resistance

R

DSON_P

I

LX= 100mA, TJ= 25 °C

0.10

Ω

I

LX= 100mA, TJ= 125 °C

0.14

Low Side Switch Resistance(2)

R

DSON_N

I

LX= -100mA, TJ= 25 °C

0.09

I

LX= -100mA, TJ= 125 °C

0.125

L

X Leakage Current

(2)

I

LK(LX)

PVIN= AVIN= 5.5V; LX= 0V; CTL

0-3= AGND

1

10

µA

PVIN= AVIN= 5.5V; LX= 5.0V; CTL

0-3= AGND

-10

-1

Load Regulation

ΔV

LOAD-REG

PVIN= AVIN= 5.0V; I

OUT=1mA to 2A

±0.5

±1.0

%

Oscillator Frequency

f

OSC

2.125

2.500

2.875

MHz

Soft-Start Time(2)

t

SS

I

OUT= 0 to 2A

50

850

980

µs

CTLx Input High Current(2)

I

EN_HI

CTL

0-3=AVIN

-2.0

2.0

µA

CTLx Input Low Current(2)

I

EN_LO

CTL

0-3=AGND

-2.0

2.0

µA

Absolute Maximum Ratings

PVIN and AVIN Supply Voltages ………………… -0.3 to 6.0V

LX Voltage ………….. -1 to PVIN+1V, -3V (20ns Max), 6V Max

VOUT Voltage …………………………… -0.3 to AVIN+0.3V

CTLx Voltage …………………………… -0.3 to AVIN+0.3V

Operating Junction Temperature ….…….….… -40 to +125 °C

Peak IR Reflow Temperature …………………………. 260°C

ESD Protection Level(2) …………………………………. 2.5kV