STBB1XX datasheet(7/20 Pages) STMICROELECTRONICS

部件名	STBB1XX

功能描述	Buck-boost DC-DC converter

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STBB1xx

Electrical characteristics

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5

Electrical characteristics

(VIN = VINA = VEN = 3.6 V, CIN = 10 µF, COUT = 10 µF, L = 2.2 µH, TJ = - 40 to 85°C (unless

otherwise specified; typical values are referred to TA = 25°C)

Table 6.

Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIN

Input voltage range

2.0

5.5

V

VUVLO

Under voltage lockout threshold

VINA rising

1.70

1.80

V

VINA falling

1.50

1.60

VFB

Feedback voltage

485

500

515

mV

TJ = 25°C

490

500

510

mV

VOUT

Output voltage range

1.2

5.5

V

ZFB

FB input impedance

10

M

Ω

IQ

No switching quiescent current

(VIN+VINA) (see Figure 3, 4)

FB = 0.7 V, VMODE = 0 V

160

250

µA

FB = 0.7 V, VMODE = VIN

600

750

IQ

Operating quiescent current

(VIN+VINA)

IOUT = 0 A, VOUT = 3.3 V,

VMODE = 0 V

200

µA

IOUT = 0 A, VOUT = 3.3 V,

VMODE = VIN

3.4

5.0

mA

IQSHDN

Shutdown quiescent current

VEN = 0 V, VIN = 3.6 V

0.1

1

µA

Freq

Oscillator frequency

1300

1500

1750

kHz

Frequency range for

synchronization

1300

2000

VEN

Enable input logic low

VIN = 2.2V to 5.5V

0.4

V

Enable input logic high

VIN = 2.2V to 5.5V

1.2

IEN

Enable pin current

VEN = 5.5V

0.01

1

µA

VMODE/SYNC

MODE/SYNC input logic low

VIN = 2.2V to 5.5V

0.4

V

MODE/SYNC input logic high

VIN = 2.2V to 5.5V

1.2

IMODE/SYNC MODE/SYNC pin current

VMODE/SYNC = 5.5V

0.01

1

µA

%VOUT

Line regulation

2.2V<VIN<5.5V; IOUT=1mA

0.5

%

%VOUT

Load regulation

10mA<IOUT<1000mA

1

%

ISWL

Switch current limitation

VIN = 3.3 V

1.6

2.3

2.4

A

ILKN

NMOS leakage current

VIN = 5.5 V

0.01

1

µA

ILKP

PMOS leakage current

0.01

1

µA

RDSon-N

NMOS switch on resistance

0.13

0.35

Ω

RDSon-P

PMOS switch on resistance

0.13

0.35

Ω

ν

Efficiency, VIN = 3.6 V, VOUT =

3.3 V

IOUT=10mA; VMODE=0

89

%

IOUT=10mA; VMODE=VIN

67

IOUT=100mA; VMODE=VIN

94

类似零件编号 - STBB1XX

制造商	部件名	数据表	功能描述
STMicroelectronics	STBB1-APUR	1Mb / 22P	1 A, high efficiency single inductor dual mode buck-boost DC-DC converter
	STBB1-AXX	1Mb / 24P	Buck-boost DC-DC converter October 2014 Rev 4
	STBB1PUR	1Mb / 21P	1 A, high efficiency single inductor

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