Datasheet

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Environmental & Absolute Maximum Ratings (Voltages are with respect to GND)
Characteristics Symbols Conditions Min Typ Max Units
Track Input Voltage V
track
–0.3 — V
in
+ 0.3 V
Operating Temperature Range T
a
Over V
in
Range –40 — 85 °C
Solder Reflow Temperature T
reflow
Surface temperature of module body or pins 235
(i)
°C
Storage Temperature T
s
— –40 — 125 °C
Mechanical Shock Per Mil-STD-883D, Method 2002.3
— 500 — G’s
1 msec, ½ Sine, mounted
Mechanical Vibration Mil-STD-883D, Method 2007.2 Suffix H — 20 —
G’s
20-2000 Hz Suffix S — 10 —
Weight — — 5 — grams
Flammability — Meets UL 94V-O
Notes: (i) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the stated maximum.
PTH03020W —3.3-V Input
22-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
SLTS206C – MAY 2003 – REVISED DECEMBER 2003
Specifications (Unless otherwise stated, T
a
=25 °C, V
in
=3.3 V, V
out
=2 V, C
in
=1,000 µF, C
out
=0 µF, and I
o
=I
o
max)
PTH03020W
Characteristics Symbols Conditions Min Typ Max Units
Output Current I
o
60 °C, 200 LFM airflow 0 — 22
(1)
A
25 °C, natural convection 0 — 22
(1)
Input Voltage Range V
in
Over I
o
range 2.95
(2)
— 3.65 V
Set-Point Voltage Tolerance V
o
tol — — ±2
(3)
%V
o
Temperature Variation ∆Reg
temp
–40 °C <T
a
< +85 °C — ±0.5 — %V
o
Line Regulation ∆Reg
line
Over V
in
range — ±5 — mV
Load Regulation ∆Reg
load
Over I
o
range — ±5 — mV
Total Output Variation ∆Reg
tot
Includes set-point, line, load,
——±3
(3)
%V
o
–40 °C ≤ T
a
≤ +85 °C
Efficiency η I
o
=10 A R
SET
= 2.21 kΩ V
o
= 2.5 V — 95 —
R
SET
= 4.12 kΩ V
o
= 2.0 V — 94 —
R
SET
= 5.49 kΩ V
o
= 1.8 V — 93 — %
R
SET
= 8.87 kΩ V
o
= 1.5 V — 91 —
R
SET
= 17.4 kΩ V
o
= 1.2 V — 90 —
R
SET
= 36.5 kΩ V
o
= 1.0 V — 88 —
V
o
Ripple (pk-pk) V
r
20 MHz bandwidth — 20 — mVpp
Over-Current Threshold I
o
trip Reset, followed by auto-recovery — 41 — A
Transient Response 1 A/µs load step, 50 to 100 % I
o
max,
C
out
=330 µF
t
tr
Recovery Time — 50 — µSec
∆V
tr
V
o
over/undershoot — 100 — mV
Margin Up/Down Adjust V
o
adj — ± 5 — %
Margin Input Current (pins 9 /10) I
IL
margin Pin to GND — – 8
(4)
—µA
Track Input Current (pin 8) I
IL
track Pin to GND — — –130
(5)
µA
Track Slew Rate Capability dV
track
/dt C
out
≤ C
out
(max) — — 1 V/ms
Under-Voltage Lockout UVLO V
in
increasing — 2.8 2.95
V
V
in
decreasing 2.2 2.7 —
Inhibit Control (pin3) Referenced to GND
Input High Voltage V
IH
V
in
–0.5 — Open
(5)
V
Input Low Voltage
V
IL
–0.2 — 0.8
Input Low Current
I
IL
inhibit
Pin to GND — –130 — µA
Input Standby Current I
in
inh Inhibit (pin 3) to GND, Track (pin 8) open — 10 — mA
Switching Frequency ƒ
s
Over V
in
and I
o
ranges 250 300 340 kHz
External Input Capacitance C
in
1,000
(6)
——µF
External Output Capacitance C
out
Capacitance value non-ceramic 0 330 (
7)
11,000
(8)
µF
ceramic 0 — 300
Equiv. series resistance (non-ceramic) 4
(9)
——mΩ
Reliability MTBF Per Bellcore TR-332
4.9 — — 10
6
Hrs
50 % stress, T
a
=40 °C, ground benign
Notes: (1) See SOA curves or consult factory for appropriate derating.
(2) The minimum input voltage is equal to 2.95 V or Vout + 0.5 V, whichever is greater.
(3) The set-point voltage tolerance is affected by the tolerance and stability of R
SET
. The stated limit is unconditionally met if R
SET
has a tolerance of 1 %
with 100 ppm/°C or better temperature stability.
(4) A small low-leakage (<100 nA) MOSFET is recommended to control this pin. The open-circuit voltage is less than 1 Vdc.
(5) This control pin has an internal pull-up to the input voltage Vin. If it is left open-circuit the module will operate when input power is applied. A small
low-leakage (<100 nA) MOSFET is recommended for control. For further information, consult the related application note.
(6) A 1,000 µF electrolytic input capacitor is required for proper operation. The capacitor must be rated for a minimum of 700 mArms of ripple current.
(7) An external output capacitor is not required for basic operation. Adding 330 µF of distributed capacitance at the load will improve the transient response.
(8) This is the calculated maximum. The minimum ESR limitation will often result in a lower value. Consult the application notes for further guidance.
(9) This is the typcial ESR for all the electrolytic (non-ceramic) output capacitance. Use 7 m
Ω as the minimum when using max-ESR values to calculate.