S-8520F27MC-BNMT2U datasheet, PDF

Datasheet> All Categories > Power/power management> The power supply circuit> S-8520F27MC-BNMT2U

S-8520F27MC-BNMT2U: DescriptionIC REG CTRLR BUCK SOT23-5; CategoryPower/power management The power supply circuit; File Size605KB，44 Pages; ManufacturerABLIC; Environmental Compliance

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S-8520F27MC-BNMT2U Overview

IC REG CTRLR BUCK SOT23-5

S-8520F27MC-BNMT2U Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	ABLIC
Parts packaging code	SOT-23
package instruction	SOT-23, 5 PIN
Contacts	5
Reach Compliance Code	compliant
ECCN code	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	16 V
Minimum input voltage	2.5 V
JESD-30 code	R-PDSO-G5
JESD-609 code	e3
length	2.9 mm
Number of functions	1
Number of terminals	5
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output current	0.05 A
Nominal output voltage	2.7 V
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	1.3 mm
surface mount	YES
Switch configuration	SINGLE
Maximum switching frequency	360 kHz
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	TIN
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	1.6 mm

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S-8520/8521 Series

www.ablic.com

www.ablicinc.com

STEP-DOWN, PWM CONTROL or PWM / PFM SWITCHABLE

SWITCHING REGULATOR CONTROLLER

Rev.9.0

_02

The S-8520/8521 Series is a CMOS step-down switching regulator-controller with PWM control (S-8520 Series) and PWM

/ PFM switching control (S-8521 Series). The S-8520/8521 Series has a reference voltage source, an oscillation circuit, an

error amplifier, and other components.

The S-8520 Series provides low-ripple power, high efficiency, and excellent transient characteristics due to a PWM control

circuit capable of varying the duty ratio linearly from 0% up to 100%. The S-8520/8521 Series also has a soft-start circuit

that prevents overshoot at startup.

The S-8521 Series works with either PWM control or PFM control. It normally operates using PWM control with a duty ratio

of 25% to 100%, but under a light load, it automatically switches to PFM control with a duty ratio of 25%. The S-8520/8521

Series ensures high efficiency over a wide range of conditions for devices, from the standby mode to the operation.

By adding external Pch power MOS FET or PNP transistor, coil, capacitor, and externally connected diode, the

S-8520/8521 Series can function as a step-down switching regulator, and is ideal for power supply units of portable

devices due to small SOT-23-5 and the feature of low current consumption. It is also ideal for AC adapters due to the input

voltage up to 16 V.



Features



Low current consumption

A

max. (A, B types)

A

max. (C, D types)

100

A

max. (E, F types)

During shutdown: 0.5

A

max.

Input voltage:

2.5 V to 16 V (B, D, F types)

2.5 V to 10 V (A, C, E types)

Output voltage:

Selectable between 1.5 V and 6.0 V in 0.1 V step

Duty ratio:

0% to 100% PWM control (S-8520 Series)

25% to100% PWM / PFM switching control (S-8521 Series)

External parts are Pch power MOS FET or PNP transistor, coil, diode, and capacitor only

(When using PNP transistor, add base resistor and capacitor).

Oscillation frequency:

180 kHz typ. (A, B types)

60 kHz typ. (C, D types)

300 kHz typ. (E, F types)

Soft-start function:

8 ms. typ.

(A, B types)

12 ms. typ. (C, D types)

4.5 ms. typ. (E, F types)

With a shutdown function

With a built-in overload protection circuit Overload detection time:

4 ms. typ.

(A type)

14 ms. typ. (C type)

2.6 ms. typ. (E type)

Lead-free, Sn 100%, halogen-free

During operation:



*1.

Refer to “

Product Name Structure”

for details.

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