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Details, datasheet, quote on part number:PT6722
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Datasheet text preview:
PT6722--12V
14-A Low-Voltage Programmable Integrated Switching Regulator
SLTS161
(Revised 10/2/2001)
Features
· 12V Input · 14-A Output Current · 5-Bit Programmable Output: 1.1V to 1.85V (25mV Steps) · VRM 9.0 Compatible · 82% Efficiency · Standby On/Off Control · · · · · · Differential Remote Sense Over-Voltage Protection Drive Power Good Signal Short Circuit Protection Space Saving Solderable Case 4.7·106 Hrs. MTBF
Description
The PT6722 is a fully integrated 14-A switching regulator housed in a space-saving solderable package. The PT6722 operates from 12V to provide a high-performance low-voltage output that is programmable over the range 1.1V to 1.85V. This output voltage range is specifically suited to high performance µP and DSP applications that require core supply voltages below 1.3V. The voltage control inputs are also TTL compatible. Additional features include output short circuit protection, a "Power Good" output, and an over-voltage protection (OVP) drive.
Ordering Information
PT6722o = 1.1 to 1.85 Volts
Pin-Out Information
P i n Function
1 2 3 4 5 6 7 8 9 OVP Drive Pwr Good VID0 VID1 VID2 VID3 VID4 STBY* Do not connect
P i n Function
13 Rem Sense Gnd 14 GND 15 GND 16 GND 17 GND 18 GND 19 Vout 20 Vout 21 Vout 22 Vout 23 Rem Sense Vout
( 2)
PT Series Suffix (PT1234x)
Case/Pin Configuration Ver tical Horizontal SMD Order Suffix Package Code (ELD) (ELA) (ELC)
N A C
(Reference the applicable package code drawing for the dimensions and PC layout)
1 0 V in 1 1 V in 1 2 V in
For STBY* pin: open = output enabled ground = output disabled.
Standard Application
PROGRAMMING PINS
VID0 VID1 VID2 VID3 VID4
OVP DRV
REMOTE SENSE (+) 76543 1 23 V OUT
VIN
L1 1µH R1
1012
PT6722
2 8 1418 13
1922
PWR GOOD
+ CIN 1,000µF
+ COUT 330µF
GND
LOAD
GND STBY* REMOTE SENSE ()
C in/ C out : Required electrolytic capacitors see footnotes. L 1: Optional 1µH input choke see footnotes R1 : 10-k pull-up for Pwr Good signal. Pwr Good is high when the output is within specification.
For technical support and more information, see inside back cover or visit www.ti.com
PT6722--12V
14-A Low-Voltage Programmable Integrated Switching Regulator
Programming Information
VID3
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
PT6700 Product Family Comparison
VID4=0 Vout
1. 4 7 5V 1.500 V 1.525 V 1.550 V 1.575 V 1.600 V 1.6 25 V 1.65 0 V 1. 6 7 5V 1. 7 0 0V 1. 7 2 5V 1. 750 V 1. 7 7 5V 1. 8 0 0V 1.825 V 1 . 8 50 V
VID2
1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0
VID1
1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0
VID0
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
VID4=1 Vout
0.0 00 V 1.1 00 V 1 . 1 2 5V 1 . 1 5 0V 1 . 1 7 5V 1 . 2 0 0V 1 . 2 2 5V 1 . 2 5 0V 1 . 2 7 5V 1 . 3 0 0V 1 . 3 2 5V 1 . 3 5 0V 1 . 3 7 5V 1 . 4 0 0V 1 . 4 2 5V 1 . 4 5 0V
Input Voltage PT6701 PT6702 PT6703 # PT6705 # PT6715 PT6721 PT6722 # PT6725 5V 3.3V 3.3 V/5V 5V 5V 12V 12V 12V
Adjust Method 5-Bit 4-Bit 5-Bit Resistor Resistor 5-Bit 5-Bit Resistor
Program Range 1.3V 3.5V 1.3V 2.05V 1.1V 1.85V 1.5V3.3V 1.5V3.3V 1.3V 3.5V 1.1V 1.85V 1.5V5.0V
OVP/ +12V Bias Pwr Good Required ü ü ü ü ü ü
Logic 0 = Pin 13 potential (remote sense gnd) Logic 1 = Open circuit (no pull-up resistors) VID4 may not be changed while the unit is operating.
# Indicates a series of products that have a nominal output voltage set-point and may be adjusted with an external resistor.
Specifications
Characteristic Output Current
(Unless otherwise stated, Ta =25°C, Vin =12V, C out =330µF, and Io =Iomax) Symbol Io V in Vo tol Regtemp Regline Regload Votot Vr ttr Vtr Isc o V IH V IL IIL Iin standby Cout Ta Ts MTBF -- -- -- -- Conditions Ta =+60°C, 200LFM Ta =+25°C, natural convection Over Io Range 40° >Ta > +85°C Over Vin range Over Io range Includes set-point, line, load, 40° >Ta > +85°C Io =8A 20MHz bandwidth 0.1A/µs load step, 6A to 12A Vo over/undershoot Over Vin range Referenced to GND (pin 14) Pin 8 to GND pins 8 & 14 connected 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 Per Mil-Std-883D, method 2007.2, 20-2000Hz, soldered in a PC board -- Materials meet UL 94V-0 Min 0.1 (1) 0.1 (1) 10.8 -- -- -- -- -- Vo =1.8V Vo =1.2V -- -- -- -- -- -- 300 4.0 0.2 -- -- 330 (4) -40 -40 11.7 -- -- --
PT6722 Typ
-- -- -- ±10 ±0.5 ±2.5 ±2.5 ±25 83 78 20 50 ±70 20 350 -- 0.4 10 5 -- -- -- -- 500 15 (6) 26
Max 14 14 13.2 ±20 (2) -- ±5 ±10 ±36 -- -- -- -- -- 30 400 Open (3) 1.0 10 15,000 +85 (5) +125 -- -- -- --
Units A VDC mV %Vo mV mV mV % mVpp µs mV A kHz V µA mA µF °C °C 106 Hrs G's Gs ' grams
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 Current Switching Frequency Standby Control (pin 8) Input High Voltage Input Low Voltage Input Low Current Standby Input Current External Output Capacitance Operating T mperature Range e Storage T mperature e Reliability Mechanical Shock Mechanical Vibration Weight Flammability
Notes: (1) ISR-will operate down to no load with reduced specifications. (2) If the remote sense ground is not used, pin 13 must be connected to pin 14 for optimal output voltage accuracy. (3) The Standby control (pin 8) has an internal pull-up, and if left open-circuit the module will operate when input power is applied. A small low-leakage (<100nA) MOSFET must be used to control this input. The open-circuit voltage is less than 10V. See application notes for further information. (4) For operation below 0°C, Cin and Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors. (5) See Safe Operating Area curves. (6) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
External Capacitors: The PT6722 requires a minimum ouput capacitance of 330µF, and a minimum input capacitance of 1,000µF for proper operation. The input capacitance must be rated for a minimum of 1.6Arms of ripple current. For transient or dynamic load applications, additional input and output capacitance may be required.The maximum allowable output capacitance is 15,000µF. For more information refer to the application note regarding capacitor selection for this product. Input Inductor: An input filter inductor is optional for most applications. The inductor must be sized to handle 3ADC with a typical value of 1µH.
For technical support and more information, see inside back cover or visit www.ti.com
PT6722--12V
14-A Low-Voltage Programmable Integrated Switching Regulator
Typical Characteristics
PT6722 Performance; Vin =12V
Efficiency vs Output Current
90 85 80
(See Note A)
PT6722 Thermal Derating; Vin =12V
Safe Operating Area; Vo =1.8V
90 80
(See Note A)
Ambient Temperature (°C)
Efficiency - %
VOUT
75 70 65 60 55 50 0 2 4 6 8 10 12 14
70 60 50 40 30 20 0 2 4 6 8 10 12 14
Air flow 200LFM 120LFM 60LFM Nat conv
1.8V 1.5V 1.2V
Iout (A)
Iout (A)
Ripple vs Output Current
25
20
VOUT Ripple - mV
15
10
1.8V 1.5V 1.2V
5
0 0 2 4 6 8 10 12 14
Iout (A)
Power Dissipation vs Output Current
8 7 6
VOUT Pd - Watts
5 4 3 2 1 0 0 2 4 6 8 10 12 14
1.8V 1.5V 1.2V
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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