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Details, datasheet, quote on part number:PT6724
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Datasheet text preview:
PT6725 Series
14-A 12V-Input Adjustable Integrated Switching Regulator
SLTS102A
(Revised 1/14/2002)
Features
· · · · · · · · · Up to 14A Output Current +12V Input 93% Efficiency (PT6724) On/Off Standby Function Differential Remote Sense Adjustable Output Voltage Short Circuit Protection 17-pin Space-Saving Package Solderable Copper Case
Description
The PT6725 series of power modules are integrated switching regulators (ISRs), housed in a 17-pin space saving solderable copper package. These modules operate off a 12V input power bus to provide up to 14A of low-voltage power for the industry 's latest high-speed, DSPs, µPs, and bus drivers. The series includes the standard output bus voltage options, ranging fr om 1.2V to 5.0V. The factory preset voltage can also be adjusted over a limited range with a single external resistor. Features include a Standby function, output short circuit protection, and a differential Remote Sense to compensate for voltage drop between the ISR and load. The modules are available in both through-hole and surface mount configurations.
Ordering Information
PT6724H PT6725H PT6726H PT6727H PT6728H PT6729H = = = = = = 5.0 3.3 2.5 1.8 1.5 1.2 Volts Volts Volts Volts Volts Volts
Pin-Out Information
Pin
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Function
Vo Adjust STBY* Do Not Connect Vin Vin Vin Remote Sense Gnd GND GND GND GND GND Vout Vout Vout Vout Remote Sense Vout
PT Series Suffix (PT1234 x )
Case/Pin Configuration Vertical Horizontal SMD Order Suffix Package Code * (EMD) (EMA) (EMC)
N A C
* Previously known as package styles 1340/50. (Reference the applicable package code drawing for the dimensions and PC board layout)
* For further information, see application notes.
Standard Application
STBY* Vout Adjust
REMOTE SENSE (+)
2 1 17
VIN
L1
4-6
1µH +
PT6725
8 - 12 7
13 - 16
VOUT
CIN
COUT
REMOTE SENSE (-)
+
LOAD
GND
GND
Cin = Required 1000µF electrolytic Cout= Required 330µF electrolytic L1 = Optional 1µH input choke
For technical support and more information, see inside back cover or visit www.ti.com
PT6725 Series
14-A 12V-Input Adjustable Integrated Switching Regulator
Specifications
Characteristic Output Current
(Unless otherwise stated, Ta =25°C, Vin =12V, C in =1,000µF, Cout =330µF, and I o =Iomax) Symbol Io Vin Vo tol Regtemp Regline Regload Votot Conditions Ta =+60°C, 200LFM Ta =+25°C, natural convection Over Io Range 40° Ta +85°C, Io =Iomin Over Vin range Over Io range Includes set-point, line, load, 40° Ta +85°C Io =9.0A Vo 2.5V Vo >2.5V Min 0.1 (1) 0.1 (1) 10.8 -- -- -- -- -- Vo =5.0V Vo =3.3V Vo =2.5V Vo =1.8V Vo =1.5V Vo =1.2V -- -- -- -- -- -- -- -- -- -- 300 -- 0.1 -- -- 330 1,000 -40 (4) -40 7.8 -- -- -- Materials meet UL 94V-0
PT6725 SERIES Typ Max
-- -- -- ±1 ±0.5 ±5 ±5 ±2 93 90 87 84 81 78 35 70 ±100 20 350 -- -- 0.5 0.5 -- -- -- -- -- 500 15 (6) 23 14 13 13.2 ±1.5 (2) -- ±10 ±10 ±3 -- -- -- -- -- -- -- -- -- 32 400 Open (3) +0.4 1.0 15,000 -- +85 (5) +125 -- -- -- --
Units A VDC %Vo %Vo mV mV %Vo
Input Voltage Range Set Point Voltage T lerance o Temperature Variation Line Regulation Load Regulation Total Output Voltage Variation Efficiency
%
Vo Ripple (pk-pk) Transient Response Short Circuit Threshold Switching Frequency Remote On/Off (Pin 2) Input High Voltage Input Low Voltage Input Low Current Standby Input Current External Output Capacitance External Input Capacitance Operating T mperature Range e Storage T mperature e Reliability Mechanical Shock Mechanical Vibration Weight Flammability
Vr ttr Vtr Isc threshold s VIH VIL IIL Iin standby Cout Cin Ta Ts MTBF -- -- -- --
20MHz bandwidth 5A/µs load step, 50% to 100% Iomax Vo over/undershoot Over Vin and Io range Referenced to Vin (pin 8)
mVpp µs mV A kHz V mA mA µF µF °C °C 106 Hrs G's G's grams
pins 2 & 8 connected See application schematic See application schematic Over Vin range -- Per Bellcore TR-332 50% stress, Ta =40°C, ground benign Per Mil-Std-883D, method 2002.3, 1ms, half-sine, mounted to a fixture Mil-Std-883D, Method 2007.2, 20-2000Hz, soldered in PCB
Notes: (1) The ISR will operate at no load with reduced specifications. (2) If the remote sense feature is not being used, connect the Remote Sense Gnd (pin 7) to GND (pin 8) for optimum output voltage accuracy. (3) The STBY* control (pin 2) has an internal pull-up and if it is left open circuit the module will operate when input power is applied. The open-circuit voltage is typically the input voltage, Vin. Refer to the application notes for other interface considerations. (4) For operation below 0°C, Cin and Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors. See application notes. (5) See Safe Operating Area curves or contact the factory for the appropriate derating. (6) The case pins on through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
Input/Output Capacitors: For proper operation in all applications, the PT6725 series requires a 1,000µF input capacitor (Cin) with a minimum 1.6Arms ripple current rating. And a 330µF output capacitor (Cout) with a maximum ESR of 50m at 100kHz. For transient or dynamic load applications, additional output capacitance may be necessary. The maximum allowable output capacitance is 15,000µF. For more information consult the related application note on capacitor recommendations. Input Inductor: An input filter inductor is optioinal for most applications. The inductor must be sized to handle 6.5ADC with a typical value of 1µH.
For technical support and more information, see inside back cover or visit www.ti.com
PT6725 Series
14-A 12V-Input Adjustable Integrated Switching Regulator
Typical Characteristics
Characteristic Data; Vin =12V (See Note A)
Efficiency vs Output Current
100
Safe Operating Area; Vin =12V (See Note B)
PT6724, Vo =5.0V
90 80
VOUT 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V
Ambient Temperature (°C)
90
70 60 50 40 30
Air flow 200LFM 120LFM 60LFM Nat Conv
Efficiency - %
80
70
60
50 0 2 4 6 8 10 12 14
20 0 2 4 6 8 10 12 14
Iout (A)
Iout (A)
Output Ripple vs Output Current
60 90 80 50
PT6725, Vo =3.3V
VOUT
40
Ambient Temperature (°C)
30
20
5.0V 3.3V 2.5V 1.8V 1.5V 1.2V
70 60 50 40 30 20
Air flow 200LFM 120LFM 60LFM Nat Conv
Ripple - mV
10
0 0 2 4 6 8 10 12 14
0
2
4
6
8
10
12
14
Iout (A)
Iout (A)
Power Dissipation vs Output Current
10 90 80
PT6726, Vo =2.5V
VOUT 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V
Ambient Temperature (°C)
8
70 60 50 40 30
Air flow 200LFM 120LFM 60LFM Nat Conv
Pd - Watts
6
4
2
0 0 2 4 6 8 10 12 14
20 0 2 4 6 8 10 12 14
Iout (A)
Iout (A)
PT6729, Vo =1.2V
90 80
Ambient Temperature (°C)
70 60 50 40 30 20 0 2 4 6 8 10 12 14
Air flow 200LFM 120LFM 60LFM Nat Conv
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
For technical support and more information, see inside back cover or visit www.ti.com
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