Texas Instruments SLTS174A Data Handbook/Manual
Summary
The PT5810 series of integrated switching regulators delivers high-density, adjustable power for demanding electronic systems. Designed for engineers working on space-constrained PCBs and requiring reliable point-of-load power up to 20A from a 3.3V input bus. This technical manual provides comprehensive details on performance characteristics, including efficiency ratings (>90%), voltage tolerance, temperature ranges, and advanced protection features like thermal shutdown. It is the ideal component for developers implementing modern DSPs and microprocessors where footprint size cannot be compromised.
Page 1 Text Content
查询PT4842供应商 PT5810 Series 20-A 3.3-V Input Adjustable
SLTS174A - JANUARY 2003 - REVISED APRIL 2003
Integrated Switching Regulator
Features 3.3 V Input On/Off Inhibit Function 20 A Output Current Over-Current Protection DSP Compatible Thermal Shutdown Low-Profile (8 mm) Small Footprint
>90 % Efficiency (0.736 in², Suffix ‘N’)
Output Margin Control (±5 %) Surface Mount Compatible Adjustable Output Voltage IPC Lead Free 2 Pre-Bias Startup Capability
Description Ordering Information Pin-Out Information
The PT5810 Excalibur™ series of integrated PT5812 = 2.5 Volts Pin Function
switching regulators (ISRs) combines outstand- PT5813 = 1.8 Volts Vo Adjust PT5814 = 1.5 Volts Inhibit*
ing power density with a comprehensive list of
PT5815 = 1.2 Volts Margin Dn*
features. They are an ideal choice for applications
PT5816 = 1.0 Volts Margin Up*
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
Sense(–)
the size of the previous product generation. The PT Series Suffix (PT1234x)
integral copper case construction requires no
Case/Pin Order Package GND heatsink, and offers the advantages of solderabil- Configuration Suffix Code
ity and a small footprint (0.736 in² for suffix ‘N’). Vertical (EPP)
Both through-hole and surface mount pin con- Horizontal (EPQ)
figurations are available. SMD (EPS)
The PT5810 series operates from a 3.3-V input (Reference the applicable package code draw-
ing for the dimensions and PC board layout)
bus to provide a convenient point-of-load power
source for the industry’s latest high-performance Vout DSPs and microprocessors. The series includes Sense(+) output voltage options as low as 1.0 VDC.
* Denotes negative logic:
Other features include external output voltage
Open = Normal operation adjustment, a ±5 % margin control, on/off inhibit, Ground = Function active
short circuit protection, thermal shutdown, and a differential remote sense.
Standard Application
Margin Dn Margin Up Sense(+)
Vo Adjust
VIN PT5800
CIN 9–13 COUT
1,000 µF 330 µF (Required) (Required)
Sense(–)
Inhibit
GND Cin = Required 1,000 µF
GND Cout = Required 330 µF
For technical support and more information, see inside back cover or visit www.ti.com
Page Summary Contents For Texas Instruments SLTS174A Data Handbook/Manual
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 12 |
| File Size | 214.94 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What is the maximum output current of the PT5810 series regulator?
The PT5810 series provides a full 20 A of output current.
What is the input voltage range for the PT5810 series?
The input voltage range is 2.95 V to 3.65 V over the output current range.
What protect features does the PT5810 regulator have?
It has over-current protection, thermal shutdown, and short circuit protection.
What package configurations are available for the PT5810?
Vertical (N), Horizontal (A), and SMD (C) through-hole and surface mount configurations.