TEXAS INSTRUMENTS SLTS200C Technical data

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PTH03000W —3.3-V Input

6-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module

NOMINAL SIZE = 0.75 in x 0.5 in

(19,05 mm x 12,7 mm)

Description

The PTH03000 series of non-isolated
power modules are small in size and high
on performance. Using double-sided sur­face mount construction and synchronous
rectification technology, these regulators
deliver up to 6 A of output current while
occupying a PCB area of about half the
size of a standard postage stamp. They
are an ideal choice for applications where
space, performance and cost are impor­tant design constraints.

The series operates from an input
voltage of 3.3 V to provide step-down
power conversion to any output voltage
over the range, 0.9 V to 2.5 V. The out­put voltage of the PTH03000W is set
within this range using a single resistor.

SLTS200C – MAY 2003 – REVISED DECEMBER 2003

Features

• Up to 6-A Output Current

• 3.3 V Input Voltage

• Wide-Output Voltage Adjust

(0.9 V to 2.5 V)

• Efficiencies up to 95 %

• 115 W/in³ Power Density

• On/Off Inhibit

• Under-Voltage Lockout

Operating features include an on/off

inhibit, output voltage adjust (trim), an
output current limit, and over-temperature
protection.

Target applications include telecom,

industrial, and general purpose circuits,
including low-power dual-voltage systems
that use a DSP, microprocessor, or ASIC.

Package options include both through-

hole and surface mount configurations.

• Output Current Limit

• Over-Temperature Protection

• Operating Temp: –40 to +85 °C

• Surface Mount Package

• Safety Agency Approvals (Pending):

UL 1950, CSA 22.2 950, EN60950
& VDE

Pin Configuration

Pin Function

1 GND
2V

in

3 Inhibit *
4Vo Adjust
5V

out

* Denotes negative logic:

Open = Output On
Ground = Output Off

Standard Application

R

= Required to set the output voltage to a value

set

higher than 0.9 V (see spec. table for values)
Cin= Required 100 µF capacitor
C

= Optional 100 µF capacitor

out

V

IN

C

IN

100 µF
(Required)

Inhibit

GND

For technical support and further information visit http://power.ti.com

1

2
3

PTH03000W

(Top View)

R

SET

1 %, 0.1 W
(Required)

5

4

C

OUT

100 µF
Electrolytic
(Optional)

V

OUT

GND

PTH03000W —3.3-V Input

6-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module

Ordering Information

Output Voltage

Code Voltage

W 0.9 V – 2.5 V (Adjust)

Notes: (1) Add “T” to end of part number for tape and reel on SMD packages only.

(2) Reference the applicable package reference drawing for the dimensions and PC board layout
(3) “Standard” option specifies 63/37, Sn/Pb pin solder material.

(PTH03000Hxx)

Package Options

(PTH03000xHH)

Code Description Pkg Ref.

AH Horiz. T/H (EUS)
AS SMD, Standard

Pin Descriptions

Vin: The positive input voltage power node to the mod-

ule, which is referenced to common GND.

Vout: The regulated positive power output with respect
to the GND node.

GND: This is the common ground connection for the
‘V

’ and ‘V

in

reference for the ‘Inhibit’ and ‘V

Inhibit: The Inhibit pin is an open-collector/drain negative
logic input that is referenced to GND. Applying a low­level ground signal to this input disables the module’s
output and turns off the output voltage. When the Inhibit
control is active, the input current drawn by the regulator
is significantly reduced. If the Inhibit pin is left open­circuit, the module will produce an output whenever a
valid input source is applied.

’ power connections. It is also the 0 VDC

out

Adjust’ control inputs.

o

SLTS200C – MAY 2003 – REVISED DECEMBER 2003

(1)

(2)

(3)

(EUT)

Vo Adjust: A 0.1 W 1 % resistor must be directly connected
between this pin and the GND pin to set the output voltage
to a value higher than 0.9 V. The temperature stability
of the resistor should be 100 ppm/°C (or better). The set
point range for the output voltage is from 0.9 V to 2.5 V.
The resistor required for a given output voltage may be
calculated from the following formula. If left open circuit,
the output voltage will default to its lowest value. For
further information on output voltage adjustment, consult
the related application note.

R

set

= 10 kΩ ·

0.891 V

V

– 0.9 V

out

– 4.99 kΩ

The specification table gives the preferred resistor values
for a number of standard output voltages.

For technical support and further information visit http://power.ti.com

PTH03000W —3.3-V Input

6-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module

SLTS200C– MAY 2003 – REVISED DECEMBER 2003

Environmental & Absolute Maximum Ratings

Characteristics Symbols Conditions Min Typ Max Units

Operating Temperature Range T
Solder Reflow Temperature T
Storage Temperature T

a

reflow

s

Over Vin Range –40
Surface temperature of module body or pins 235

— –40 — +125 °C
Over Temperature Protection OTP IC junction temperature — 150 — °C
Mechanical Shock Per Mil-STD-883D, Method 2002.3 — 500 — G’s

Mechanical Vibration Mil-STD-883D, Method 2007.2 — 20 — G’s

1 msec, ½ sine, mounted

20-2000 Hz
Weight — — 2 — 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.

Electrical Specifications Unless otherwise stated, T

=25 °C, Vin =3.3 V, Vo =2 V, Cin =100 µF, C

a

Characteristics Symbols Conditions Min Typ Max Units

Output Current I

Input Voltage Range V

o

in

0.9 V ≤ Vo ≤ 2.5 V, T

Over Io range 3 — 3.6 V

=60 °C, 200 LFM airflow 0 — 6

a

Ta =25 °C, natural convection 0 — 6

Set-Point Voltage Tolerance Vo tol — — ±2
Temperature Variation ∆Reg
Line Regulation ∆Reg
Load Regulation ∆Reg
Total Output Variation ∆Reg

temp

line

load

tot

Efficiency η I

Vo Ripple (pk-pk) V

r

Transient Response 1 A/µs load step, 50 to 100 % Iomax,

t

tr

∆V

Current Limit I

tr

lim

Under-Voltage Lockout UVLO V

Inhibit Control (pin 3) Referenced to GND
Input High Voltage V

Input Low Voltage
Input Low Current

IH

V

IL

I

IL

–40 °C <Ta < +85 °C — ±0.5 — %V

Over Vin range — ±5 — mV

Over Io range — ±5 — mV

Includes set-point, line, load,

–40 °C ≤ Ta ≤ +85 °C

=4 A R

o

= 576 Ω Vo = 2.5 V — 93 —

SET

= 3.09 kΩ Vo = 2.0 V — 91 —

R

SET

= 4.87 kΩ Vo = 1.8 V — 90 —

R

SET

= 9.76 kΩ Vo = 1.5 V — 88 —

R

SET

= 24.3 kΩ Vo = 1.2 V — 86 —

R

SET

R

= 82.5 kΩ Vo = 1.0 V — 84 —

SET

20 MHz bandwidth — 20 — mVpp

=1.8 V, C

V

o

Recovery time — 70 — µSec

Vo over/undershoot — 100 — mV

∆V

= –50 mV — 13 — A

o

increasing — 2.95 3

in

Vin decreasing 2.6 2.8 —

=100 µF

out

Pin 3 to GND — –10 — µA
Standby Input Current Iin inh pins 1 & 3 connected — 1 — mA
Switching Frequency ƒ
External Input Capacitance C
External Output Capacitance C

s

in

out

Over Vin and Io ranges — 700 — kHz

Capacitance value non-ceramic 0 100

ceramic 0 — 300

Equiv. series resistance (non-ceramic) 4
Reliability MTBF Per Bellcore TR-332

Notes:

(1) See SOA curves or consult factory for appropriate derating.
(2) The set-point voltage tolerance is affected by the tolerance and stability ofR

with 100 ppm/°C or better temperature stability.

(3) The Inhibit control (pin 3) has an internal pull-up to Vin, and if left open-circuit the module will operate when input power is applied. A small low-

leakage (<100 nA) MOSFET is recommended to control this input. See application notes for more information.

(4) The regulator requires a minimum of 100 µF input capacitor with a minimum 300 mArms ripple current rating. For further information, consult the

related application note on Capacitor Recommendations.
(5) An external output capacitor is not required for basic operation. Adding 100 µF of distributed capacitance at the load will improve the transient response.
(6) This is the calculated maximum. The minimum ESR limitation will often result in a lower value. Consult the application notes for further guidance.
(7) This is the typical ESR for all the electrolytic (non-ceramic) output capacitance. Use 7 m

50 % stress, Ta =40 °C, ground benign

. The stated limit is unconditionally met if R

SET

Ω

as the minimum when using max-ESR values to calculate.

(i)

— +85 °C

=0 µF, and Io =Iomax

out

(ii)

PTH03000W

(1)
(1)

(2)

1,000

(2)

(3)

(6)

— — ±3

Vin –0.5 — Open
–0.2 — 0.8

(4)

100

——µF

(5)

(7)

——mΩ

28——10

has a tolerance of 1 %

SET

°C

A

%V

%V

%

V

V

µF

6

o

o

o

Hrs

For technical support and further information visit http://power.ti.com

)

)

)

PTH03000W —3.3-V Input

Typical Characteristics

6-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module

Characteristic Data; Vin =3.3V (See Note A)

Efficiency vs Output Current

100

90

80

70

Efficiency - %

60

50

0123456

Ripple vs Output Current

50

40

30

20

Ripple - mV

10

Iout - Amps

SLTS200C – MAY 2003 – REVISED DECEMBER 2003

Safe Operating Area; Vin =3.3 V (See Note B)

All Output Voltages

90

V

OUT

2.5 V

2.0 V

1.8 V

1.5V

1.2V

1.0 V

V

OUT

1.0 V

1.2 V

1.5 V

1.8 V

2.0 V

2.5 V

80

70

60

50

40

Ambient Temperature (°C)

30

20

0123456

Iout (A

Airflow

100LFM
Nat Conv

0

0123456

Power Dissipation vs Output Current

2

1.6

1.2

0.8

Pd - Watts

0.4

0

0123456

Iout (A

Iout (A

Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter.
Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures. Derating limits apply to

modules soldered directly to a 4 in.

×

4 in. double-sided PCB with 1 oz. copper.

For technical support and further information visit http://power.ti.com