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Details, datasheet, quote on part number:PT5816C
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| Part: | PT5816C |
| Category: | Power Management => Plug-in Power Solutions->Non-Isolated->Single Posi |
| Description: | ti PT5816, 1V 20-A, 3.3-V Input Adjustable Step-down Isr |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download PT5816C datasheet File size : 207 kB |
| Request For quote: | Find where to buy PT5816C
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Datasheet text preview:
PT5810 Series
20-A 3.3-V Input Adjustable Integrated Switching Regulator
SLTS174 - JANUARY 2003 - REVISED APRIL 2003
Features
· · · · · · · · 3.3 V Input 20 A Output Current DSP Compatible Low-Profile (8 mm) >90 % Efficiency Output Margin Control (±5 %) Adjustable Output Voltage Pre-Bias Startup Capability · · · · On/Off Inhibit Function Over-Current Protection Thermal Shutdown Small Footprint (0.736 in², Suffix `N') · Surface Mount Compatible · IPC Lead Free 2
Description
The PT5810 ExcaliburTM series of integrated swi tc hi ng regulators (ISRs) combines outstanding power density with a comprehensive list of features. They are an ideal choice for applications where board space is a premium and performance cannot be compromised. These modules provide a full 20 A of output current, yet are housed in a low-profile, 18-pin, package that is almost half the size of the previous product generation. The integral copper case construction requires no heatsink, and offers the advantages of solderability and a small footprint (0.736 in² for suffix `N'). Both through-hole and surface mount pin configurations are available. The PT5810 series operates from a 3.3-V input bus to provide a convenient point-of-load power source for the industry's latest high-performance DSPs and microprocessors. The series includes output voltage options as low as 1.0 VDC. Other features include external output voltage adjustment, a ±5 % margin control, on/off inhibit, short circuit protection, thermal shutdown, and a differential remote sense.
Ordering Information
PT5812H PT5813H PT5814H PT5815H PT5816H = 2.5 Volts = 1.8 Volts = 1.5 Volts = 1.2 Volts = 1.0 Volts
Pin-Out Information
Pin Function
1 2 3 4 5 6 7 Vo Adjust Inhibit* Margin Dn* Margin Up* Vin Vin Vin Sense() GND GND GND GND GND Vout Vout Vout Vout Sense(+)
PT Series Suffix (PT1234 x )
Case/Pin Configuration Vertical Horizontal SMD Order Suffix Package Code (EPP) (EPQ) (EPS)
8 9 10 11 12 13 14 15 16 17 18
N A C
(Reference the applicable package code drawing for the dimensions and PC board layout)
* Denotes negative logic: Open = Normal operation Ground = Function active
Standard Application
Margin Dn Margin Up Vo Adjust
1 5, 6, 7 4 3 18 1417 Sense(+)
VOUT
VIN CIN 1,000 µF (Required) Inhibit GND
PT5800
2 913 8
Sense()
For technical support and more information, see inside back cover or visit www.ti.com
+ L O A D
COUT 330 µF (Required)
+
GND
Cin = Required 1,000 µF Cout = Required 330 µF
PT5810 Series
20-A 3.3-V Input Adjustable Integrated Switching Regulator
SLTS174 - JANUARY 2003 - REVISED APRIL 2003
Specifications
Characteristics
(Unless otherwise stated, T a =25 °C, Vin =3.3 V, Vout =1.8 V, C in =1,000 µF, Cout =330 µF, and I o =Io max)
Symbols Io Vin Vo tol Regtemp Regline Regload Regtot
Conditions Over Io range 40°C Min 0 2.95 (1) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 250
PT5810 SERIES Typ Max
-- -- -- ±0.5 ±4 ±2 -- 93 90 89 87 84 20 50 120 30 ±15 (2) ±5 300 -- -- 0.2 5 -- -- -- 110 -- -- -- 500 20 (8) 20 20 3.65 ±2 -- -- -- ±3 -- -- -- -- -- -- -- -- -- -- -- 350 Open (3) 0.6 -- -- -- 5,000 +85 (6) -- 215 (7) +125 -- -- -- --
Units A V %Vo %Vo mV mV %Vo %
Output Current Input Voltage Range Set-Point Voltage Tolerance Temperature Variation Line Regulation Load Regulation Total Output Variation Efficiency
Vo Ripple (pk-pk) Transient Response
Vr ttr Vtr ITRIP Vo adj s VIH VIL IIL Iin standby Cin Cout Ta OTP Treflow Ts MTBF
mVpp µSec mV A % kHz V mA mA µF µF °C °C °C °C 106 Hrs G's G's grams
Over-Current Threshold Output Voltage Adjust Switching Frequency Inhibit Control (pin 2) Input High Voltage Input Low Voltage Input Low Current Standby Input Current External Input Capacitance External Output Capacitance Operating T mperature Range e Over-T mperature Protection e Solder Reflow T mperature e Storage T mperature e Reliability Mechanical Shock Mechanical Vibration Weight Flammability
-- --
Over Vin range Measured at center of case, auto-reset Surface temprature of module pins or case -- Per Bellcore TR-332 50% stress, Ta =40°C, ground benign Mil-STD-883D, Method 2002.3 Half Sine, mounted to a fixture Mil-STD-883D, Method 2007.2, 20-2000 Hz, PCB mounted -- Materials meet UL 94V-0
Vin 0.5 0.2 -- -- 1,000 (4) 330 (5) 40 (5) -- -- -40 5.8 -- -- --
Notes: (1) The minimum input voltage is equal to 2.95 V or Vout + 0.75 V, whichever is greater. (2) This is a typical value. For the adjustment limits of a specific model consult the related application note on output voltage adjustment. (3) The Inhibit control (pin 2) has an internal pull-upto Vin, and if left open-circuit the module will operate when input power is applied. A small lowleakage (<100nA) MOSFET is recommended to control this input. See application notes for more information. (4) A 1,000 µF electrolytic input capacitor is required for proper operation. This capacitor must be rated for a minimumm of 0.7 Arms of ripple current. (5) For operation below 0 °C, COUT must have stable characteristics. Use either low-ESR tantalum or Oscon® type capacitors. (6) See SOA curves or consult factory for the appropriate derating. (7) During solder reflow of SMD package version do not elevate the module case, pins, or internal component temperatures above a peak of 215 °C. For further guidance refer to the application note, "Reflow Soldering Requirements for Plug-in Power Surface Mount Products," (SLTA051) (8) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
For technical support and more information, see inside back cover or visit www.ti.com
PT5810 Series
20-A 3.3-V Input Adjustable Integrated Switching Regulator
SLTS174 - JANUARY 2003 - REVISED APRIL 2003
Pin Descriptions
Vin: The positive supply voltage input for the module with respect to the common ground (GND). Vout: This is the regulated output voltage from the module with respect to the common ground (GND). GND: The common node to which the input, output, and external control signals are referenced. Sense(): Provides the regulator with the ability to sense the set-point voltage directly across the load. For optimum output voltage accuracy this pin should always be connected to GND, even for applications that demand a r e l a t i v e l y light load. Sense(+): When used with Sense(), the regulation circuitry will compensate for voltage drop between the converter and the load. The pin may be left open circuit, but connecting it to Vout will optimize load regulation. Inhibit*: This is an open-collector (open-drain) negative logic input that is referenced to GND. Pulling this pin to GND disables the module's output voltage. If Inhibit* is left open-circuit, the output will be active whenever a valid input source is applied. Vo Adjust: This pin is used to trim the output voltage to a value within the range of ±10 % of nominal. The adjustment method uses an external resistor. The resistor is connected from Vo Adjust to either the (-)Sense or (+)Sense, in order to adjust the output up or down, respectively. Margin Dn*: When this open-collector (open-drain) input is asserted to GND, the output voltage is automatically decreased by 5 % from the nominal. This feature is used in applications where the load circuit must be tested for operation at the extreme values of its supply voltage tolerance. Margin Up*: This is an open-collector (open-drain) input. When this is asserted to GND, the output voltage is automatically increased by 5 % from the nominal.
Typical Characteristics Performance Data; Vin =3.3 V (See Note A)
Efficiency vs Output Current
100 6 5
Power Dissipation vs Output Current
90
Efficiency - %
80
70
PT5812 PT5813 PT5814 PT5815 PT5816
4
Pd - Watts
3
2
60
1
50 0 4 8 12 16 20
0 0 4 8 12 16 20
Iout - Amps
Iout - Amps
Output Ripple vs Output Current
60 50
Safe Operating Curves; Vin =3.3 V (See Note B)
90 80
Ambient Temperature (°C)
70 60 50 40 30 20
Air flow 200LFM 120LFM 60LFM Nat Conv
40
30
20
PT5814 PT5812 PT5813 PT5816 PT5815
Ripple - mV
10
0 0 5 10 15 20
0
4
8
12
16
20
Iout - Amps
Iout (A)
Note A: Characteristic data has been developed from actual products tested at 25 °C. This data is considered typical data for the ISR. Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer's maximum rated operating temperatures.
For technical support and more information, see inside back cover or visit www.ti.com
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