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LM2757TMX/NOPB

Charge Pump STPUP 4.1V/4.5V/5V 100mA/110mA/180mA 12-Pin DSBGA T/R

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LM2757TMX/NOPB General Description

The LM2757 is a constant-frequency pre-regulated switched-capacitor charge pump that operates at 1.25 MHz to produce a low-noise regulated output voltage. The device can be configured to provide up to 100 mA at 4.1 V, 110 mA at 4.5 V, or 180 mA at 5 V. Excellent efficiency is achieved without the use of an inductor by operating the charge pump in a gain of either 3/2 or 2 according to the input voltage and output voltage option selection.

The LM2757 presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the LM2757 is shut down.

The LM2757 device comes in a tiny 12-pin 0.4-mm pitch DSBGA package. A perfect fit for space-constrained, battery-operated applications, the device requires only 4 small, inexpensive ceramic capacitors. Built-in soft-start, overcurrent protection, and thermal shutdown features are also included in this device.

Texas Instruments, Inc Inventory

Key Features

  • Dual Gain Converter (2×, 3/2×) With up to 93%
    Efficiency
  • Inductorless Solution Uses Only 4 Small Ceramic
    Capacitors
  • Total Solution Area < 12 mm2
  • True Input-Output and Output-Input Disconnect
  • Up to 180-mA Output Current Capability (5 V)
  • Selectable 4.1-V, 4.5-V or 5-V Output
  • Pre-Regulation Minimizes Input Current Ripple
  • 1.24-MHz Switching Frequency for Low-Noise,
    Low-Ripple Output Voltage
  • Integrated Overcurrent and Thermal Shutdown
    Protection
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory

Specifications

Category Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators Mfr Texas Instruments
Series - Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Active Function Step-Up
Output Configuration Positive Topology Charge Pump
Output Type Programmable Number of Outputs 1
Voltage - Input (Min) 2.7V Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 4.1V, 4.5V, 5V Voltage - Output (Max) -
Current - Output 180mA Frequency - Switching 1.242MHz
Synchronous Rectifier No Operating Temperature -30°C ~ 85°C (TA)
Mounting Type Surface Mount Package / Case 12-WFBGA, DSBGA
Supplier Device Package 12-DSBGA (1.64x1.24) Base Product Number LM2757
Vin (min) (V) 2.7 Vin (max) (V) 5.5
Vout (min) (V) 4.87 Vout (max) (V) 5.13
Iout (max) (A) 0.18 Regulated outputs (#) 1
Switching frequency (min) (kHz) 932 Switching frequency (max) (kHz) 1552
Iq (typ) (mA) 2.4 Features Enable, Load Disconnect
Operating temperature range (°C) -30 to 85 Rating Catalog
Type Charge pump feature-function Step Up
feature-process-technology feature-output-type Fixed
feature-output-voltage-v 5|4.5|4.1 feature-minimum-operating-supply-voltage-v 2.7
feature-maximum-operating-supply-voltage-v 5.5 feature-maximum-supply-current-ma
feature-maximum-power-dissipation-mw feature-output-current-ma 180|110|100
feature-switching-frequency-khz 1242(Typ) feature-efficiency- 93
feature-packaging Tape and Reel feature-rad-hard
feature-pin-count 12 feature-supplier-package DSBGA
feature-standard-package-name BGA feature-cecc-qualified No
feature-esd-protection Yes feature-military No
feature-aec-qualified No feature-aec-qualified-number
feature-eccn-code EAR99 feature-svhc No
feature-svhc-exceeds-threshold No

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