ST1S12GR datasheet(7/20 Pages) STMICROELECTRONICS

номер детали	ST1S12GR

подробное описание детали	Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed or adjustable step-down switching regulator in TSOT23-5L

PDF	20 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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ST1S12XX, ST1S12XX12, ST1S12XX18

Electrical characteristics

Doc ID 14314 Rev 3

7/20

VIN =VEN = 3 V, CIN = 4.7 µF, CO =10 µF, L = 2.2 µH, TJ = -40 to 125 °C (unless otherwise

specified. Typical values are referred to 25 °C).

Table 7.

Electrical characteristics for ST1S12G12

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

OUT

Output feedback pin

TJ =-40 to 125°C

1.164

1.2

1.236

VO pin bias current

µA

VIN

Minimum input voltage

IO= 10mA to 0.7A

2.5

Quiescent current

VIN =VEN, VFB=1.5V

500

600

µA

VEN = 0, T = -40°C to 85°C

µA

Output current

VIN = 2.5V to 5.5V

(1)

0.7

VEN

Enable threshold

Device ON, VIN = 2.5 to 5.5V

1.5

Device OFF

0.5

IEN

Enable pin current

µA

%VO/ΔVIN Reference line regulation

VIN = 2.5V to 5.5V

(1)

0.05

0.1

%VO/ΔVIN

%VO/ΔIO Reference load regulation

IO = 10mA to 700mA

(1)

0.0025 0.005

%VO/mA

PWMfS

PWM switching frequency

1.16

1.7

2.08

MHz

RDSON-N NMOS switch on resistance

ISW = 100 mA

0.25

0.4

RDSON-P PMOS switch on resistance

ISW = 100 mA

0.25

0.45

ISWL

Switching current limitation

(1)

1.6

Efficiency (1)

IO = 10mA to 100mA

IO = 100mA to 0.7A

TSHDN

Thermal shutdown

130

150

°C

THYS

Thermal shutdown hysteresis

°C

%VO/ΔIO Load transient response

IO = 100mA to 700mA, TA = 25°C

tR = tF ≥ 200ns, CO=22µF

(1)

-5

%VO

%VO/ΔIO

Short circuit removal

response

IO = 10mA to IO = short,

TA = 25°C

(1)

-10

+10

%VO

Guaranteed by design, but not tested in production.

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