PTH05050W Datasheet, PDF (1/16 Pages) Texas Instruments – 6-A, 5-V Input Non-Isolated Wide-Output Adjust Power Module

PTH05050W —5-V Input
6-A, 5-V Input Non-Isolated
Wide-Output Adjust Power Module
SLTS213C – MAY 2003 – REVISED MAY 2004
NOMINAL SIZE = 0.87 in x 0.5 in
(22,1 mm x 12,57 mm)
Features
• Up to 6-A Output Current
• 5-V Input Voltage
• Wide-Output Voltage Adjust
(0.8 V to 3.6 V)
• Efficiencies up to 95 %
• 135 W/in³ Power Density
• On/Off Inhibit
• Pre-Bias Startup
• Under-Voltage Lockout
• Operating Temp: –40 to +85 °C
• Auto-Track™ Sequencing
• Output Over-Current Protection
(Non-Latching, Auto-Reset)
• IPC Lead Free 2
• Safety Agency Approvals:
UL 1950, CSA 22.2 950, EN60950
VDE (Pending)
• Point-of-Load Alliance (POLA)
Compatible
Description
The PTH05050 is one of the smallest
non-isolated power modules from Texas
Instruments that features Auto-Track™.
Auto-Track simplifies supply voltage
sequencing in power systems by enabling
modules to track each other, or any other
external voltage, during power up and
power down.
Although small in size (0.87 in × 0.5 in),
these modules are rated for up to 6 A of
output current, and are an ideal choice in
applications where space, performance,
and a power-up sequencing capability are
important attributes.
The product provides high-performance
step-down conversion from a 5-V input
bus voltage. The output voltage of the
PTH05050W can be set to any voltage
over the range, 0.8 V to 3.6 V, using a
single resistor.
Other operating features include an
on/off inhibit, output voltage adjust (trim),
and output over-current protection. For
high efficiency these parts employ a
synchronous rectifier output stage, but a
pre-bias hold-off capability ensures that
the output will not sink current during
startup.
Target applications include telecom,
industrial, and general purpose circuits,
including low-power dual-voltage systems
that use a DSP, microprocessor, ASIC, or
FPGA.
Package options include both through-
hole and surface mount configurations.
Pin Configuration
Pin Function
1 GND
2 Track
3 V_in
4 Inhibit *
5 Vo Adjust
6 V_out
* Denotes negative logic:
Open = Normal operation
Ground = Function active
ASuteoq-uTreanccki™ng
Standard Application
Track
V_IN
C_IN
100 µF
(Required)
Inhibit
GND
Rset = Required to set the output voltage to a value
higher than 0.8 V. (See spec. table for values)
Cin = Required 100 µF
Co1 = Optional 100 µF capacitor
Co2 = Optional 10 µF ceramic capacitor for reduced
output ripple.
1
6
2
PTH05050W
3
(Top View)
4
5
R_SET
1 %, 0.1 W
(Required)
Co₁
100 µF
Electrolytic
(Optional)
V_OUT
Co₂
10 µF
Ceramic
(Optional)
GND
For technical support and further information, visit http://power.ti.com