LTM8029
LTM8029 is 600mA Step-Down uModule Converter manufactured by Linear Technology.
Features n plete Switch Mode Power Supply n Low Quiescent Current Burst Mode® Operation 5μA IQ at 12VIN to 3.3VOUT n 600m A Output Current n Wide Input Voltage Range: 4.5V to 36V (40VMAX) n Output Voltage: 1.2V to 18V n Excellent Dropout Performance n Can Be Used as an Inverter n Adjustable Switching Frequency: 200k Hz to 2.2MHz n Current Mode Control n Sn Pb or Ro HS pliant Finish n Tiny, Low Profile (11.25mm × 6.25mm × 3.42mm)
Surface Mount BGA Package
APPLICATIONS n Automotive Battery Regulation n Power for Portable Products n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation
LTM8029 36VIN, 600m A Step-Down µModule Converter with
5µA Quiescent Current DESCRIPTION
The LTM®8029 is a 36VIN, 600m A step-down µModule® converter with 5µA quiescent current. It is an adjustable frequency buck switching regulator that consumes only 5μA of quiescent current. The LTM8029 can accept an input as high as 36VIN and operates at low input voltages due to its off-time skipping capability. Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple low. The RUN pin Features an accurate threshold and the shutdown current is 0.9μA. A power good flag signals when VOUT reaches 90% of the programmed output voltage.
The LTM8029 is packaged in a thermally enhanced, pact (11.25mm × 6.25mm) and low profile (3.42mm) overmolded ball grid array (BGA) package. The LTM8029 is available with Sn Pb (BGA) or Ro HS pliant terminal finish.
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TYPICAL APPLICATION
Low Quiescent Current, 5VOUT, 600m A µModule Regulator
VIN 5.6V TO 36V
VIN VOUT
1µF RUN
BIAS
PGOOD
RT GND FB
158k
309k f = 800k Hz
8029 TA01a
22µF
VOUT 5V 600m A
INPUT VOLTAGE (V)
Minimum Input Voltage vs Output Current
5.4 0
100 200 300 400 500 600 OUTPUT CURRENT (m A)
8029...