TPS43336-Q1 datasheet(5/42 Pages) TI1

номер детали	TPS43336-Q1

подробное описание детали	LOW IQ, SINGLE BOOST, DUAL SYNCHRONOUS BUCK CONTROLLER

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TPS43335-Q1

TPS43336-Q1

www.ti.com

SLVSAV6B – JUNE 2011 – REVISED JULY 2012

DC ELECTRICAL CHARACTERISTICS

VIN = 8 V to 18 V, TJ = –40°C to 150°C (unless otherwise noted)

NO.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

1.0

Input Supply

Boost controller enabled, after initial start-up

1.1

VBat

Supply voltage

2

40

V

condition is satisfied

Input voltage required for device

6.5

40

on initial start-up

1.2

VIN

V

Buck regulator operating range

4

40

after initial start-up

VIN falling. After a reset, initial start-up conditions

3.5

3.6

3.8

V

may apply.(1)

1.3

VIN UV

Buck undervoltage lockout

VIN rising. After a reset, initial start-up conditions

3.8

4

V

may apply.(1)

VBOOST_UNLOC

1.4

Boost unlock threshold

VBAT rising

8.2

8.5

8.8

V

K

VIN = 13 V, BuckA: LPM, BuckB: off, TA = 25°C

30

40

µA

LPM quiescent current:

1.5

Iq_LPM_

VIN = 13 V, BuckB: LPM, BuckA: off, TA = 25°C

(2)

VIN = 13 V, BuckA, B: LPM, TA = 25°C

35

45

µA

VIN = 13 V, BuckA: LPM, BuckB: off, TA = 125°C

40

50

µA

LPM quiescent current:

1.6

Iq_LPM

VIN = 13 V, BuckB: LPM, BuckA: off, TA = 125°C

(2)

VIN = 13 V, BuckA, B: LPM, TA = 125°C

45

55

µA

SYNC = 5 V, TA = 25°C

VIN = 13 V, BuckA: CCM, BuckB: off, TA = 25°C

4.85

5.3

Quiescent current:

1.7

Iq_NRM

mA

normal (PWM) mode(2)

VIN = 13 V, BuckB: CCM, BuckA: off, TA = 25°C

VIN = 13 V, BuckA, B: CCM, TA = 25°C

7

7.6

SYNC = 5 V, TA = 125°C

VIN = 13 V, BuckA: CCM, BuckB: off, TA = 125°C

5

5.5

Quiescent current:

1.8

Iq_NRM

mA

normal (PWM) mode(2)

VIN = 13 V, BuckB: CCM, BuckA: off, TA = 125°C

VIN = 13 V, BuckA, B: CCM, TA = 125°C

7.5

8

1.9

Ibat_sh

Shutdown current

BuckA, B: off, VBat = 13 V , TA = 25°C

2.5

4

µA

1.10

Ibat_sh

Shutdown current

BuckA, B: off, VBat = 13 V, TA = 125°C

3

5

µA

2.0

Input Voltage VBAT - Undervoltage Lockout

VBAT falling. After a reset, initial start-up

1.8

1.9

2

V

conditions may apply.(1)

2.1

VBATUV

Boost-input undervoltage

VBAT rising. After a reset, initial start-up

2.4

2.5

2.6

V

conditions may apply.(1)

2.2

UVLOHys

Hysteresis

500

600

700

mV

2.3

UVLOfilter

Filter time

5

µs

3.0

Input Voltage VIN - Overvoltage Lockout

VIN rising

45

46

47

3.1

VOVLO

Overvoltage shutdown

V

VIN falling

43

44

45

3.2

OVLOHys

Hysteresis

1

2

3

V

3.3

OVLOfilter

Filter time

5

µs

(1)

If VBAT and VREG remain adequate, the buck can continue to operate if VIN is > 3.8 V.

(2)

Quiescent current specification is non-switching current consumption without including the current in the external-feedback resistor

divider.

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