Datasheet

TPS43330-Q1
TPS43332-Q1
www.ti.com SLVSA82E –MARCH 2011–REVISED APRIL 2013
DC ELECTRICAL CHARACTERISTICS
V
IN
= 8 V to 18 V, T
J
= –40°C to 150°C (unless otherwise noted)
NO. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
1.0 Input Supply
Boost controller enabled, after satisfying initial
1.1 V
BAT
Supply voltage 2 40 V
start-up condition
Input voltage required for device
6.5 40
on initial start-up
1.2 V
IN
V
Buck regulator operating range
4 40
after initial start-up
V
IN
falling. After a reset, initial start-up conditions
3.5 3.6 3.8 V
may apply.
(1)
1.3 V
IN(UV)
Buck undervoltage lockout
V
IN
rising. After a reset, initial start-up conditions
3.8 4 V
may apply.
(1)
V
BOOST_UNLOC
1.4 Boost unlock threshold V
BAT
rising 8.2 8.5 8.8 V
K
V
IN
= 13 V, BuckA: LPM, BuckB: off, T
A
= 25°C
30 40 µA
LPM quiescent current:
1.5 I
q_LPM_
V
IN
= 13 V, BuckB: LPM, BuckA: off, T
A
= 25°C
(2)
V
IN
= 13 V, BuckA, B: LPM, T
A
= 25°C 35 45 µA
V
IN
= 13 V, BuckA: LPM, BuckB: off, T
A
= 125°C
40 50 µA
LPM quiescent current:
1.6 I
q_LPM
V
IN
= 13 V, BuckB: LPM, BuckA: off, T
A
= 125°C
(2)
V
IN
= 13 V, BuckA, B: LPM, T
A
= 125°C 45 55 µA
SYNC = HIGH, T
A
= 25°C
V
IN
= 13 V, BuckA: CCM, BuckB: off, T
A
= 25°C 4.85 5.3
Quiescent current:
1.7 I
q_NRM
mA
normal (PWM) mode
(2)
V
IN
= 13 V, BuckB: CCM, BuckA: off, T
A
= 25°C
V
IN
= 13 V, BuckA, B: CCM, T
A
= 25°C 7 7.6
SYNC = HIGH, T
A
= 125°C
V
IN
= 13 V, BuckA: CCM, BuckB: off, T
A
= 125°C 5 5.5
Quiescent current:
1.8 I
q_NRM
mA
normal (PWM) mode
(2)
V
IN
= 13 V, BuckB: CCM, BuckA: off, T
A
= 125°C
V
IN
= 13 V, BuckA, B: CCM, T
A
= 125°C 7.5 8
1.9 I
bat_sh
Shutdown current BuckA, B: off, V
BAT
= 13 V , T
A
= 25°C 2.5 4 µA
1.10 I
bat_sh
Shutdown current BuckA, B: off, V
BAT
= 13 V, T
A
= 125°C 3 5 µA
2.0 Input Voltage V
BAT
- Undervoltage Lockout
V
BAT
falling. After a reset, initial start-up conditions
1.8 1.9 2 V
may apply.
(1)
2.1 V
BAT(UV)
Boost-input undervoltage
V
BAT
rising. After a reset, initial start-up conditions
2.4 2.5 2.6 V
may apply.
(1)
2.2 UVLO
Hys
Hysteresis 500 600 700 mV
2.3 UVLO
filter
Filter time 5 µs
3.0 Input Voltage V
IN
- Overvoltage Lockout
V
IN
rising 45 46 47
3.1 V
OVLO
Overvoltage shutdown V
V
IN
falling 43 44 45
3.2 OVLO
Hys
Hysteresis 1 2 3 V
3.3 OVLO
filter
Filter time 5 µs
(1) If V
BAT
and V
REG
remain adequate, the buck can continue to operate if V
IN
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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