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LMZ10501 Datasheet, PDF (1/20 Pages) National Semiconductor (TI) – 1A SIMPLE SWITCHER® Nano Module with 5.5V Maximum Input Voltage | |||
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LMZ10501
October 5, 2011
1A SIMPLE SWITCHER® Nano Module with 5.5V Maximum
Input Voltage
8 Pin LLP-Footprint Package
System Performance
(Quick Overview Links: VOUT = 1.2V, 1.8V, 2.5V, 3.3V)
SE08A 8 Pin Package
30124731
3.0 x 2.5 x 1.2 mm (0.118 x 0.098 x 0.047 in)
RoHS Compliant
Electrical Specifications
â Up to 1A output current
â Input voltage range 2.7V to 5.5V
â Output voltage range 0.6V to 3.6V
â Efficiency up to 95%
Key Features
â Integrated inductor
â Miniature form factor (3.0 mm x 2.5 mm x 1.2 mm)
â 8-pin LLP footprint
â -40°C to 125°C junction temperature range
â Adjustable output voltage
â 2.0MHz fixed PWM switching frequency
â Integrated compensation
â Soft start function
â Current limit protection
â Thermal shutdown protection
â Input voltage UVLO for power-up, power-down, and
brown-out conditions
â Only 5 external components â resistor divider and 3
ceramic capacitors
Applications
â Point of load conversions from 3.3V and 5V rails
â Space constrained applications
â Low output noise applications
Performance Benefits
â Small solution size
â Low output voltage ripple
â Easy component selection and simple PCB layout
â High efficiency reduces system heat generation
© 2011 National Semiconductor Corporation 301247
Typical Efficiency at VIN = 3.6V
100
90
80
70
60
50
VOUT = 1.2V
40
VOUT = 1.8V
VOUT = 2.5V
VOUT = 3.3V
30
20
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
LOAD CURRENT (A)
30124730
Output Voltage Ripple
VIN = 5.0V, VOUT = 1.8V, IOUT = 1A
30124733
Radiated EMI (CISPR22)
VIN = 5.0V, VOUT = 1.8V, IOUT = 1A
80
Emissions (Evaluation Board)
70
EN 55022 Class B Limit
EN 55022 Class A Limit
60
50
40
30
20
10
0
0
200 400 600 800 1000
FREQUENCY (MHz)
30124732
www.national.com
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