Datasheet

TPS5103
MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER
SLVS240A – SEPTEMBER 1999 – REVISED MAY 2001
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, V
CC
= 7 V
(unless otherwise noted)
reference voltage
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
f
Reference voltage
T
A
= 25°C, I
vref
= 50 µA 1.167 1.185 1.203
V
V
ref
Reference
voltage
I
vref
= 50 µA 1.155 1.215
V
Regin
†
Line regulation V
CC
= 4.5 V to 25 V, I = 50 µA 0.2 12 mV
Regl
†
Load regulation I = 1 µA to 1 mA 0.5 10 mV
†
Not a JEDEC symbol.
oscillator
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
f Frequency PWM mode 500 kHz
R
(T)
Timing resistor 47 kΩ
fdv
†
Frequency change
V
CC
= 4.5 V to 25 V 0.1%
fdt
†
Frequency
change
T
A
= –40°C to 85°C 2%
V
OH
High level out
p
ut voltage
‡
DC includes internal comparator error 1 1.1 1.2
V
V
OH
High
-
level
output
voltage
‡
f = 200 kHz, includes internal comparator error 1.17
V
V
OL
Low level out
p
ut voltage
‡
DC includes internal comparator error 0.4 0.5 0.6
V
V
OL
Low
-
level
output
voltage
‡
f = 200 kHz, includes internal comparator error 0.43
V
†
Not a JEDEC symbol.
‡
The output voltages of oscillator (f = 200 kHz) are ensured by design.
error amp
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IO
Input offset voltage T
A
= 25°C 2 10 mV
Av
†
Open-loop voltage gain 50 dB
GB
†
Unity-gain bandwidth 0.8 MHz
I
O
Output sink current V
O
= 0.4 V 30 45 µA
I
S
Output source current V
O
= 1 V 300 µA
†
Not a JEDEC symbol.
hysteresis comparator
§
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
hys
Hysteresis window Hysteretic mode 6 9.7 13 mV
Vp-V
S
Offset voltage 2 mV
I Bias current 10 pA
t
PHL
Propagation delay from INV to OUT_U TTL input signal 230 ns
t
PLH
Propagation delay time, low-to-high 10-mV overdrive on hysteresis band signal 400 ns
§
The numbers in the table include the driver delay. All numbers are ensured by design.
control
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IHA
High level in
p
ut voltage
STBY 2.5
V
V
IHA
High
-
level
input
voltage
PWM/SKIP 2
V
V
ILA
Low level in
p
ut voltage
STBY 0.5
V
V
ILA
Low
-
level
input
voltage
PWM/SKIP 0.5
V