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LP3918

Features: Fully integrated Li-Ion battery charger with thermal regulation USB Charge Mode. 7 Low Noise LDO's2 x 300 mA3 x 150 mA2 x 80 mA I2C compatible interface for controlling LDO outputs and charger operation Thermal shutdown Under Voltage Lockout 25-bump Thin micro-SMD package 2.5 x 2.5 mm O...

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SeekIC No. : 004398849 Detail

LP3918: Features: Fully integrated Li-Ion battery charger with thermal regulation USB Charge Mode. 7 Low Noise LDO's2 x 300 mA3 x 150 mA2 x 80 mA I2C compatible interface for controlling LDO outputs and ch...

LP3918 Data Sheet

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Part Number:
LP3918
Supply Ability:
5000

Price Break

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

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Upload time: 2024/4/29

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Product Details

Description



Features:

Fully integrated Li-Ion battery charger with thermal regulation
USB Charge Mode.
7 Low Noise LDO's
2 x 300 mA
3 x 150 mA
2 x 80 mA
I2C compatible interface for controlling LDO outputs and charger operation
Thermal shutdown
Under Voltage Lockout
25-bump Thin micro-SMD package 2.5 x 2.5 mm
Options available on request, please contact sales office for further information;
- Level detect on HF_PWR & PWR_ON
- LDO Charging mode
- Custom Default Settings on Charger, and LDO O/P's


Application

CDMA Phone Handsets
Low Power Wireless Handsets
Handheld Information Appliances
Personal Media Players
Digital Cameras


Specifications

CHG-IN, ...........................................−0.3 to +6.5V
VBATT =VIN1/2, BATT,HF_PWR........... −0.3 to +6V
All other Inputs.................... −0.3 to VBATT +0.3V,max 6.0V
Junction Temperature (TJ-MAX) ..................150°C
Storage Temperature.............. −40°C to +150°C
Max Continuous Power Dissipation
(PD-MAX) (Note 3) ......................Internally Limited
ESD (Note 4)
Batt, VIN1, VIN2, HF_PWR,
CHG_IN, PWR_ON .....................................8kV HBM
All other pins .............................................2kV HBM


Description

The LP3918 is a fully integrated charger and multi-regulator unit designed for CDMA cellular phones. The LP3918 contains a Li-Ion battery charger, 7 low noise low dropout (LDO) voltage regulators and a high-speed serial interface to program on/off conditions and output voltages of individual regulators,and also to read status information from the PMU.

The Li-Ion charger integrates a power FET, reverse current blocking diode, sense resistor with current monitor output,
and requires only a few external components. Charging is thermally regulated to obtain the most efficient charging rate for a given ambient temperature.

LDO regulators provide high PSRR and low noise ideally suited for supplying power to both analog and digital loads.




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