Datasheet
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ELECTRICAL CHARACTERISTICS
TPIC74100-Q1
BUCK/BOOST SWITCH-MODE REGULATOR
SLIS125 – DECEMBER 2006
V
(driver)
= 6 V to 17 V, T
A
= -40°C to 125°C, unless otherwise noted
Parameters TEST CONDITIONS Min Typ Max Unit
V
(driver)
Unregulated input voltage 1.5 40 V
V
(driver)
Start-up condition voltage I
O
= 600 mA 5 V
C
O
= 36 µF (min) to 220 µF (max) 4 20
S
OM
Soft-start ramp V/ms
C
O
= 220 µF (min) to 470 µF (max), see
2 20
Note
(1)
I
(standby)
Standby current ENABLE = low 10 20 µA
I
q
Quiescent current CLP = 0 V, V
(driver)
= 11 V, I
O
= 0 mA 100 160 µ A
V
O
Output voltage DC 5 V
Normal mode 2%
V
O
Output-voltage tolerance
Boost/buck crossover or low-power
3%
mode
I
O
Output current V
(driver)
≥ 7 V 1 A
V
(driver)
= 2 V, see Note
(2)
200
I
O(Boost)
Output current, boost mode mA
V
(driver)
= 1.5 V, see Note
(2)
120
Internal peak current limit (normal
I
PPn
(1)
1.75 2.5 A
mode)
Internal peak current limit (low-power
I
PPl
(1)
0.75 1.25
mode)
I
P
Peak current V
(driver)
= 16 V, I
O
= 1 A, and L = 33 µH 1.5 A
Boost/buck crossover voltage
V
(driver)
See Note
(3)
5 5.9 V
window
T
ot
Thermal shutdown
(4)
160 180 200 °C
5Vg Output and ENABLE
r
DS(on)
On-state resistance 135 225 m Ω
I
O
Output current 400 mA
V
I
5Vg_ENABLE input-voltage range –0.5 V
O
V
V
IH
5Vg_ENABLE threshold high voltage V
(5Vg)
= 5 V 2.5 3 3.5 V
V
IL
5Vg_ENABLE threshold low voltage V
(5Vg)
= 0 V 1.5 2 2.5 V
V
(hys)
Hysteresis voltage 0.5 1 V
r
(pd)
Internal pulldown resistor 300 500 850 k Ω
ENABLE
V
I
ENABLE input-voltage range –0.5 40 V
8 V ≤ V
(driver)
≤ 17 V 2.5 3 3.5
V
IH
ENABLE threshold high voltage V
6 V ≤ V
(driver)
< 8 V 1.9 3 3.5
V
IL
ENABLE threshold low voltage V
O
= 5 V 1.5 2 2.5 V
8 V ≤ V
(driver)
≤ 17 V 0.5 1
V
(hys)
Hysteresis voltage V
6 V ≤ V
(driver)
< 8 V 0.1
(1) Ensured by characterization.
(2) Tested with inductor having following characteristics: L = 33 µH, R
max
= 0.1 Ω , I
R
= 1.8 A. Output current must be verified in application
when inductor R
max
(ESR) is increased.
(3) Ensured by characterization. For further details, see the Buck/Boost Transitioning section.
(4) Ensured by characterization; hysteresis 15°C (typical)
5
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