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LM2619

Features: Sub-miniature 10-bump thin micro SMD packageUses small ceramic capacitors5mV typ PWM mode output voltage ripple(COUT = 22F)Internal soft startCurrent overload protectionThermal ShutdownExternal compensationApplicationMobile PhonesHand-Held RadiosRF PC CardsWireless LAN CardsSpecification...

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SeekIC No. : 004394930 Detail

LM2619: Features: Sub-miniature 10-bump thin micro SMD packageUses small ceramic capacitors5mV typ PWM mode output voltage ripple(COUT = 22F)Internal soft startCurrent overload protectionThermal ShutdownExt...

LM2619 Data Sheet

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Part Number:
LM2619
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Sub-miniature 10-bump thin micro SMD package
Uses small ceramic capacitors
5mV typ PWM mode output voltage ripple(COUT = 22F)
Internal soft start
Current overload protection
Thermal Shutdown
External compensation




Application

Mobile Phones
Hand-Held Radios
RF PC Cards
Wireless LAN Cards




Specifications

PVIN, VDD to SGND −0.2V to +6V
PGND to SGND, PVIN to VDD −0.2V to +0.2V
EN, EAOUT, EANEG, SYNC/MODE
to SGND −0.2V to +6V
FB, SW(GND −0.2V) to
(VDD +0.2V)
Storage Temperature Range −45°C to +150°C
Lead Temperature
(Soldering, 10 sec.) 260°C
Junction Temperature (Note 2) −25°C to +125°C
Minimum ESD Rating±2 kV
(Human Body Model, C = 100 pF, R = 1.5 k)
Thermal Resistance (JA) (Note 3) 140°C/W

Output Current 500 mA
Input Min Voltage 2.8 Volt
Input Max Voltage 5.5 Volt
Output Min 1.5 Volt
Output Max 3.6 Volt
Frequency Min 500 kHz
Frequency Max 1000 kHz
Efficiency (peak) 96 %
On/Off Pin Yes
Error Flag No
SoftStart Yes
Sync Pin Yes
Inverting No
Flyback No
RegType Switching Regulator
Temperature Min -25 deg C
Temperature Max 85 deg C
Adjustable Output Yes
Adj Switch Frequency Yes
PWM Mode Current
Topology Synchronous Buck
Special Features Pin-selectable PWM/PFM modes, Max Iq in shutdown is 3uA, 2% output accuracy
Step-Down Yes
Multiple Output Capability No
Output Power Undefined Watt
Output Voltage Undefined Volt
Output Range 1.5V to 3.6V
Switching Frequency 600 kHz
Feedback Voltage Undefined Volt
Regulator Family Undefined
Synchronous Rectification Yes
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Description

The LM2619 step down DC-DC converter is optimized for powering circuits from a single Lithium-Ion cell. It steps down an input voltage of 2.8V to 5.5V to an output of 1.5V to 3.6V at up to 500mA. Output voltage is set using resistor feedback dividers.

The LM2619 offers three modes for mobile phones and similar portable applications. Fixed-frequency PWM mode minimizes RF interference. A SYNC input allows synchronizing the switching frequency in a range of 500kHz to 1MHz. Low current hysteretic PFM mode reduces quiescent current to 60A (typ.). Shutdown mode turns the device off and reduces battery consumption to 0.02A (typ.).






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