SC197 datasheet(3/20 Pages) SEMTECH

3 / 20 page

SC197

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.

(2) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB per JESD51 standards.

Absolute Maximum Ratings

INA, INB (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0

LXA, LXB Voltage (V) . . . . . . . . . . . . . . . . . . . . .-1.0to(V

IN +0.5)

Other Pins (V). . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3to(V

IN + 0.3)

Output Short Circuit to GND. . . . . . . . . . . . . . . . Continuous

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

Recommended Operating Conditions

Ambient Temperature Range (°C) . . . . . . . . . . .-40 ≤ T

A ≤ +85

Input Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . . .2.9 ≤ V

IN ≤ 5.5

Thermal Information

Thermal Resistance, Junction to Ambient(2) (°C/W) . . . .7 7

Storage Temperature Range (°C) . . . . . . . . . . . . -65 to +150

Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260

Unless otherwise specified: V

IN= 3.6V, CIN= 4.7µF, COUT=10µF, LX=1µH, VOUT =1.8V, TJ(MAX)=125°C, TA= -40 to +85 °C. Typical values are TA=+25 °C.

All specifications are identical for converters A and B.

Parameter

Symbol(1)

Condition

Min

Typ

Max

Units

Output Voltage Range

OUT

0.8

3.3 (2)

Output Voltage Tolerance

OUT_TOL

OUT = 200mA

-2.0

2.0

PSAVE mode

1.5

Line Regulation

ΔV

LINEREG

2.9 ≤ V

IN ≤ 5.5V, IOUT = 200mA

0.3

%/V

Load Regulation

ΔV

LOADREG

200mA ≤ I

OUT ≤ 500mA

-0.4

Output Current Capability

OUT

500

Current Limit Threshold

LIMIT

800

1300

Foldback Current Limit

FB_LIM

LOAD > ILIMIT

150

Under-Voltage Lockout

UVLO

Rising V

2.9

Hysteresis

200

Quiescent Current

No switching, I

OUT = 0mA

µA

Shutdown Current

CTL 0-3= 0V

0.1

1.0

µA

LX Leakage Current

Into LX pin

0.1

1.0

µA

High Side Switch Resistance(3)

DSON_P

OUT= 100mA

250

mΩ

Low Side Switch Resistance(4)

DSON_N

OUT= 100mA

350

Electrical Characteristics

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