Datasheet

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ELECTRICAL CHARACTERISTICS
TPS65120, TPS65121, TPS65123, TPS65124
SLVS531A – JUNE 2004 – REVISED MARCH 2005
V
IN
= 3.6 V, EN = RUN = V
IN
, L = 10 µH, T
A
= -40°C to 85°C, typical values are at T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
CONVERTER STAGE
R
L_MAIN
≥ 330 Ω at V
MAIN
= 5 V,
R
L_VGH
≥ 12 k Ω at V
GH
= 12 V,
Input voltage for full load operation 2.7 5.5 V
R
L_VGL
≥ 12 k Ω at V
GL
= -12 V,
V
LDOIN
= GND, T
A
= -40°C to 85°C
V
IN
R
L_MAIN
≥ 660 Ω at V
MAIN
= 5 V,
R
L_VGH
≥ 24 k Ω at V
GH
= 12 V,
Minimum input voltage for start-up 2.5 V
R
L_VGL
≥ 24 k Ω at V
GL
= -12 V,
V
LDOIN
= GND, T
A
= -20°C to 85°C
R
L_MAIN
= 250 Ω at V
MAIN
= 5 V
f Switching frequency 4.0 MHz
V
LDOIN
= ENVGH = ENVGL = GND
V
IN
≥ 2.7 V 35
P
GH
Output power on V
GH
mW
V
IN
≥ 2.5 V 15
V
IN
≥ 2.7 V 35
P
GL
Output power on V
GL
mW
V
IN
≥ 2.5 V 15
V
IN
≥ 2.5 V 60
V
IN
≥ 2.7 V 120
Total output power on
P
TOT
mW
V
BOOT
+ V
GH
+ V
GL
V
IN
≥ 3 V 150
V
IN
≥ 4.5 V 250
V
MAIN
= 5.0 V, I
BOOT
= 20 mA,
η Power efficiency V
GH
= 15 V, V
GL
= -10 V, 83%
I
GH
= I
GL
= 100 µA, V
LDOIN
= GND
I
LIM
P-MOS1 current limit 2.7 V ≤ V
IN
≤ 5.5 V 150 200 mA
I
START-UP
P-MOS1 start-up current limit 2.7 V ≤ V
IN
≤ 5.5 V 65 mA
V
IN
= V
GS
= 3.6 V 2.5 4.3
P-MOS1 switch on-resistance Ω
V
IN
= V
GS
= 2.5 V 3.8 6.9
V
BOOT
= V
GS
= 3.7 V 1.9 3.5
r
DS(ON)
N-MOS1 switch on-resistance Ω
V
BOOT
= V
GS
= 5 V 1.4 2.3
P-MOS1 leakage current 0.01
V
DS
= 6 V, T
A
= 25°C µA
N-MOS1 leakage current 0.01
V
GS
= V
BOOT
= 5.5 V, V
SWP
= 2 V,
N-MOS2 + P-MOS2 forward voltage drop 400 600 mV
I
BOOT
= I
D
= 50 mA
V
GS
= V
BOOT
= 5.5 V, V
SWP
= 2 V,
N-MOS3 + D1 forward voltage drop 900 1100 mV
I
GH
= I
D
= 50 mA
CONVERTER SUPPLY CURRENT
Quiescent current into VIN I
MAIN
= I
GH
= I
GL
= 0 mA, 140 170
V
GH
= +15 V, V
GL
= -15 V,
Quiescent current into BOOT 30 60
V
MAIN
= 5 V, V
FBH
= V
FBM
= +1.5 V,
I
Q
µA
V
FBL
= -0.2 V, V
BOOT
= 5.25 V,
Quiescent current into VGH 0.1 1
V
LDOIN
= GND, EN = RUN = V
IN
,
T
A
= 25°C
I
SD
Shutdown current T
A
= 25°C 0.1 1 µA
3