LMZ23603 3A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage

Description

The LMZ23603 SIMPLE SWITCHER^® power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load. The LMZ23603 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ23603 can accept an input voltage rail between 6 V and 36 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ23603 only requires two external resistors and three external capacitors to complete the power solution. The LMZ23603 is a reliable and robust design with the following protection features: thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and allows start-up into a prebiased output. The sync input allows synchronization over the 650-kHz to 950-kHz switching frequency range.

Features

Integrated Shielded Inductor
Simple PCB Layout
Frequency Synchronization Input (650 kHz to 950
kHz)
Flexible Startup Sequencing Using External Soft-
start, Tracking and Precision Enable
Protection Against Inrush Currents and Faults
Such as Input UVLO and Output Short Circuit
Junction Temperature Range –40°C to
125°C
Single Exposed Pad and Standard Pinout for
Easy Mounting and Manufacturing
Fast Transient Response for Powering FPGAs
and ASICs
Fully Enabled for WEBENCH Power Designer
Pin Compatible With
LMZ22005/LMZ23605/LMZ22003
Performance Benefits
- High Efficiency Reduces System Heat
  Generation
- Tested to EN55022 Class B⁽¹⁾
  - See AN-2125 (SNVA473) and layout for
    information on device under test.
  - V_IN = 24 V, V_O = 3.3 V, I_O = 3 A
- Low component count, only 5 external
  components
- Low output voltage ripple
- Uses PCB as heat sink, no airflow
  required
Electrical Specifications
- 18-W maximum total output power
- Up to 3-A output current
- Input voltage range 6 V to 36 V
- Output voltage range 0.8 V to 6 V
- Efficiency up to 92%

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WEBENCH^® Designer LMZ23603

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Parametrics

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Part number	Order	Iout (Max) (A)	Vin (Min) (V)	Vin (Max) (V)	Vout (Min) (V)	Vout (Max) (V)	Soft start	Features	Iq (Typ) (mA)	Regulated outputs (#)	Package size: mm2:W x L (PKG)	Switching frequency (Max) (kHz)	Switching frequency (Min) (kHz)	Switching frequency (Typ) (kHz)	Topology	Operating temperature range (C)	Duty cycle (Max) (%)	Package Group	Type
LMZ23603	Order now	3	6	36	0.8	6	Adjustable	EMI Tested Enable Frequency Synchronization Tracking	2.6	1	7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD \| 7)	950	650	812	Buck Inverting Buck-Boost Synchronous Buck	-40 to 85	83	TO-PMOD \| 7	Module
LMZ22005	Order now	5	6	20	0.8	6	Adjustable	EMI Tested Enable Frequency Synchronization Tracking	2.6	1	7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD \| 7)	950	650	812	Buck Synchronous Buck	-40 to 85	83	TO-PMOD \| 7	Module
LMZ23605	Order now	5	6	36	0.8	6	Adjustable	EMI Tested Enable Frequency Synchronization Tracking	2.6	1	7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD \| 7)	950	650	812	Buck Inverting Buck-Boost Synchronous Buck	-40 to 85	83	TO-PMOD \| 7	Module

Topology Option
	Min		Max	Range
Vin		–	V
Vout			V
Iout			A
Ambient Temp			°C	-40 to 125°C

LMZ23603 ACTIVE This product has been released to the market and is available for purchase. For some products, newer alternatives may be available. 3A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage

Description

Features

WEBENCH® Designer LMZ23603

Parametrics

LMZ23603
ACTIVE

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

3A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage

WEBENCH^® Designer LMZ23603