Datasheet > SC202FEVB

SC202FEVB

更新时间： 2023-12-18 00:00:00

品牌	Logo	应用领域
商升特 - SEMTECH		/
页数	文件大小	规格书
17页	931K
描述
3.5MHz, 500mA Step-down Regulator with Integrated Inductor

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SC202FEVB 数据手册

SC202F

3.5MHz, 500mA Step-down

Regulator with Integrated Inductor

POWER MANAGEMENT

Features

Description



Input Voltage — 2.9V to 5.5V

Output Voltage — 0.8V to 3.3V

Output current capability — 500mA

Internal inductor

15 programmable output voltages

Fast transient response

Temperature range — -40 to +85°C

Oscillator frequency — 3.5MHz

100% duty cycle capability

Quiescent current — 11mA typ

Shutdown current — 0.1μA typ

Internal soft-start

The SC202F is a high eﬃciency 500mA step-down regula-

tor that includes an integrated inductor inside the

package. The input voltage range makes it ideal for

battery operated applications with space limitations. The

SC202F operates at a ﬁxed 3.5MHz switching frequency in

normal PWM (Pulse-Width Modulation) mode. The

SC202F also includes fifteen programmable output

voltage settings that can be selected using the four

control pins, eliminating the need for external feedback

resistors. The output voltage can be fixed to a single

setting or dynamically switched between diﬀerent levels.

Pulling all four control pins low disables the output.

Over-voltage protection

The SC202F provides several protection features to safe-

guard the device under stressed conditions. These

include short circuit protection, over-temperature protec-

tion, under-voltage lockout, and soft-start to control

in-rush current. These features, coupled with the small

2.5 x 3.0 x 1.0 (mm) package, make the SC202F a versatile

device ideal for step-down regulation in products needing

high eﬃciency and a small PCB footprint.

Current limit and short circuit protection

Over-temperature protection

Under-voltage lockout

Floating control pin protection

MLPQ-13 — 2.5 x 3.0 x 1.0 (mm) package

Lead-free and halogen-free

WEEE and RoHS compliant

Applications



Optical modules, GN1157B, GN1599 etc

Set top boxes

Telecommunication equipment

Power rails demand small voltage ripple and compact

size

Typical Application Circuit

SC202F

V_IN

SNS

2.9V to 5.5V

V_{O UT}

0.8V to 3.3V

C_IN

O UT

4.7μF

CTL3

CTL2

CTL1

CTL0

C_{O UT}

10μF

Control Logic

Lines

G ND

Rev 2.0

12 3 4 5 6 7...17

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